diff --git a/README.md b/README.md
index c58c79f..2ec0faa 100644
--- a/README.md
+++ b/README.md
@@ -30,6 +30,6 @@ Szkielet komponentu Joomla 6 do gromadzenia pytań testowych.
 
 ## Instalacja
 
-W Joomla wybierz **System → Install → Install from Folder** i wskaż ten katalog. Manifestem instalacyjnym jest `com_testquestions.xml` (wersja 1.30.0).
+W Joomla wybierz **System → Install → Install from Folder** i wskaż ten katalog. Manifestem instalacyjnym jest `com_testquestions.xml` (wersja 1.31.0).
 
 Po instalacji komponent jest dostępny w panelu administratora jako **Pytania testowe**.
diff --git a/administrator/components/com_testquestions/language/en-GB/com_testquestions.ini b/administrator/components/com_testquestions/language/en-GB/com_testquestions.ini
index 1cb9fe1..5a5f107 100644
--- a/administrator/components/com_testquestions/language/en-GB/com_testquestions.ini
+++ b/administrator/components/com_testquestions/language/en-GB/com_testquestions.ini
@@ -78,6 +78,7 @@ COM_TESTQUESTIONS_RESULT_SAVE="Zapisz"
 COM_TESTQUESTIONS_RESULT_SAVE_AND_CLOSE="Zapisz i zamknij"
 COM_TESTQUESTIONS_RESULTS_SEARCH="Szukaj po użytkowniku lub zestawie..."
 COM_TESTQUESTIONS_RESULTS_TEST_NAME="Nazwa testu"
+COM_TESTQUESTIONS_RESULTS_ALL_TESTS="Wszystkie zestawy"
 COM_TESTQUESTIONS_RESULTS_DATE_FROM="Data od"
 COM_TESTQUESTIONS_RESULTS_DATE_TO="Data do"
 COM_TESTQUESTIONS_YOUR_ANSWER="Twoja odpowiedź"
diff --git a/administrator/components/com_testquestions/sql/updates/mysql/1.31.0.sql b/administrator/components/com_testquestions/sql/updates/mysql/1.31.0.sql
new file mode 100644
index 0000000..4894a54
--- /dev/null
+++ b/administrator/components/com_testquestions/sql/updates/mysql/1.31.0.sql
@@ -0,0 +1 @@
+-- No database changes required for version 1.31.0.
diff --git a/administrator/components/com_testquestions/src/Model/ResultsModel.php b/administrator/components/com_testquestions/src/Model/ResultsModel.php
index e6f240f..903d649 100644
--- a/administrator/components/com_testquestions/src/Model/ResultsModel.php
+++ b/administrator/components/com_testquestions/src/Model/ResultsModel.php
@@ -13,7 +13,7 @@ class ResultsModel extends ListModel
     {
         parent::populateState($ordering, $direction);
         $this->setState('filter.search', $this->getUserStateFromRequest($this->context . '.filter.search', 'filter_search', '', 'string'));
-        $this->setState('filter.test_name', $this->getUserStateFromRequest($this->context . '.filter.test_name', 'filter_test_name', '', 'string'));
+        $this->setState('filter.set_id', $this->getUserStateFromRequest($this->context . '.filter.set_id', 'filter_set_id', 0, 'int'));
         $this->setState('filter.date_from', $this->getUserStateFromRequest($this->context . '.filter.date_from', 'filter_date_from', '', 'string'));
         $this->setState('filter.date_to', $this->getUserStateFromRequest($this->context . '.filter.date_to', 'filter_date_to', '', 'string'));
     }
@@ -33,10 +33,9 @@ class ResultsModel extends ListModel
             $query->where('(r.participant_name LIKE ' . $needle . ' OR s.title LIKE ' . $needle . ')');
         }
 
-        $testName = trim((string) $this->getState('filter.test_name'));
-        if ($testName !== '') {
-            $needle = $db->quote('%' . $db->escape($testName, true) . '%', false);
-            $query->where('s.title LIKE ' . $needle);
+        $setId = (int) $this->getState('filter.set_id');
+        if ($setId > 0) {
+            $query->where('r.set_id = ' . $setId);
         }
 
         $dateFrom = (string) $this->getState('filter.date_from');
@@ -51,4 +50,17 @@ class ResultsModel extends ListModel
 
         return $query->order('r.created DESC, r.id DESC');
     }
+
+    public function getSets(): array
+    {
+        $db = Factory::getContainer()->get('DatabaseDriver');
+
+        return $db->setQuery(
+            $db->getQuery(true)
+                ->select(['s.id', 's.title', 's.published', 'sub.title AS subject_title'])
+                ->from($db->quoteName('#__testquestions_sets', 's'))
+                ->leftJoin($db->quoteName('#__testquestions_subjects', 'sub') . ' ON sub.id = s.subject_id')
+                ->order('sub.title ASC, s.title ASC, s.id ASC')
+        )->loadObjectList();
+    }
 }
diff --git a/administrator/components/com_testquestions/src/View/Results/HtmlView.php b/administrator/components/com_testquestions/src/View/Results/HtmlView.php
index 2530a7a..872bc3a 100644
--- a/administrator/components/com_testquestions/src/View/Results/HtmlView.php
+++ b/administrator/components/com_testquestions/src/View/Results/HtmlView.php
@@ -14,12 +14,14 @@ class HtmlView extends BaseHtmlView
     protected $items;
     protected $pagination;
     protected $state;
+    protected $sets;
 
     public function display($tpl = null)
     {
         $this->items = $this->get('Items');
         $this->pagination = $this->get('Pagination');
         $this->state = $this->get('State');
+        $this->sets = $this->get('Sets');
         ToolbarHelper::title(Text::_('COM_TESTQUESTIONS_RESULTS'));
         ToolbarHelper::link('index.php?option=com_testquestions&view=sets', 'COM_TESTQUESTIONS_SETS', 'back');
 
diff --git a/administrator/components/com_testquestions/tmpl/results/default.php b/administrator/components/com_testquestions/tmpl/results/default.php
index b24a0f3..fe0cafd 100644
--- a/administrator/components/com_testquestions/tmpl/results/default.php
+++ b/administrator/components/com_testquestions/tmpl/results/default.php
@@ -11,7 +11,13 @@ use Joomla\CMS\Router\Route;
             <input type="text" name="filter_search" value="<?php echo $this->escape($this->state->get('filter.search')); ?>" class="form-control" placeholder="<?php echo $this->escape(\Joomla\CMS\Language\Text::_('COM_TESTQUESTIONS_RESULTS_SEARCH')); ?>">
         </div>
         <div class="col-md-6">
-            <input type="text" name="filter_test_name" value="<?php echo $this->escape($this->state->get('filter.test_name')); ?>" class="form-control" placeholder="<?php echo $this->escape(\Joomla\CMS\Language\Text::_('COM_TESTQUESTIONS_RESULTS_TEST_NAME')); ?>">
+            <label for="filter-set-id" class="form-label"><?php echo \Joomla\CMS\Language\Text::_('COM_TESTQUESTIONS_RESULTS_TEST_NAME'); ?></label>
+            <select name="filter_set_id" id="filter-set-id" class="form-select">
+                <option value="0"><?php echo \Joomla\CMS\Language\Text::_('COM_TESTQUESTIONS_RESULTS_ALL_TESTS'); ?></option>
+                <?php foreach ($this->sets as $set) : ?>
+                    <option value="<?php echo (int) $set->id; ?>" <?php echo (int) $this->state->get('filter.set_id') === (int) $set->id ? 'selected' : ''; ?>><?php echo $this->escape(($set->subject_title ? $set->subject_title . ' — ' : '') . $set->title . (!(int) $set->published ? ' (nieopublikowany)' : '')); ?></option>
+                <?php endforeach; ?>
+            </select>
         </div>
     </div>
     <div class="row mb-3">
diff --git a/com_testquestions.xml b/com_testquestions.xml
index dcf8d00..3ca60f3 100644
--- a/com_testquestions.xml
+++ b/com_testquestions.xml
@@ -4,7 +4,7 @@
     <creationDate>2026-10-14</creationDate>
     <author>Komponent</author>
     <license>GNU General Public License version 2 or later</license>
-    <version>1.30.0</version>
+    <version>1.31.0</version>
     <description>COM_TESTQUESTIONS_DESCRIPTION</description>
     <element>com_testquestions</element>
     <namespace path="src">Komponent\Component\Testquestions</namespace>