diff --git a/psalm-baseline.xml b/psalm-baseline.xml
index 24e38e5..24c3ea5 100644
--- a/psalm-baseline.xml
+++ b/psalm-baseline.xml
@@ -38,7 +38,6 @@
   </file>
   <file src="src/Infrastructure/Repository/WpQueryArgsBuilder.php">
     <RiskyTruthyFalsyComparison>
-      <code><![CDATA[!$languageCode]]></code>
       <code><![CDATA[!$orderBy]]></code>
       <code><![CDATA[!$taxonomy]]></code>
       <code><![CDATA[$languageCode]]></code>
diff --git a/src/Infrastructure/Content/Taxonomy/Taxonomy.php b/src/Infrastructure/Content/Taxonomy/Taxonomy.php
index f92502e..589ef9c 100644
--- a/src/Infrastructure/Content/Taxonomy/Taxonomy.php
+++ b/src/Infrastructure/Content/Taxonomy/Taxonomy.php
@@ -48,6 +48,20 @@ final public static function hidden(): static
         );
     }
 
+    final public static function editableOnly(): static
+    {
+        return self::default()->merge(
+            [
+                'public' => false,
+                'show_ui' => true,
+                'show_in_menu' => true,
+                'show_in_nav_menus' => false,
+                'show_in_rest' => true,
+                'meta_box_cb' => false,
+            ]
+        );
+    }
+
     final public function args(): array
     {
         return $this->args;
diff --git a/src/Infrastructure/Repository/WpQueryArgsBuilder.php b/src/Infrastructure/Repository/WpQueryArgsBuilder.php
index 8f3f41d..52f5a36 100644
--- a/src/Infrastructure/Repository/WpQueryArgsBuilder.php
+++ b/src/Infrastructure/Repository/WpQueryArgsBuilder.php
@@ -17,15 +17,12 @@
 use Fau\DegreeProgram\Common\Application\Filter\SubjectGroupFilter;
 use Fau\DegreeProgram\Common\Application\Filter\TeachingLanguageFilter;
 use Fau\DegreeProgram\Common\Application\Repository\CollectionCriteria;
-use Fau\DegreeProgram\Common\Domain\CampoKeys;
 use Fau\DegreeProgram\Common\Domain\DegreeProgram;
 use Fau\DegreeProgram\Common\Domain\MultilingualString;
 use Fau\DegreeProgram\Common\Infrastructure\Content\PostType\DegreeProgramPostType;
 use Fau\DegreeProgram\Common\Infrastructure\Content\Taxonomy\BachelorOrTeachingDegreeAdmissionRequirementTaxonomy;
 use Fau\DegreeProgram\Common\Infrastructure\Content\Taxonomy\MasterDegreeAdmissionRequirementTaxonomy;
 use Fau\DegreeProgram\Common\Infrastructure\Content\Taxonomy\TaxonomiesList;
-use Fau\DegreeProgram\Common\Infrastructure\Content\Taxonomy\TeachingDegreeHigherSemesterAdmissionRequirementTaxonomy;
-use RuntimeException;
 use WP_Term;
 
 /**
@@ -270,31 +267,28 @@ private function applyTaxonomyFilter(Filter $filter, WpQueryArgs $queryArgs): Wp
 
     private function applySearchFilter(SearchKeywordFilter $filter, WpQueryArgs $queryArgs, ?string $languageCode = null): WpQueryArgs
     {
-        if (!$languageCode) {
-            return $queryArgs->withMetaQueryItem(
-                [
-                    'relation' => 'OR',
-                    [
-                        'key' => 'fau_degree_program_searchable_content_' . MultilingualString::EN,
-                        'value' => $filter->value(),
-                        'compare' => 'LIKE',
-                    ],
-                    [
-                        'key' => 'fau_degree_program_searchable_content_' . MultilingualString::DE,
-                        'value' => $filter->value(),
-                        'compare' => 'LIKE',
-                    ],
-                ]
+        $keywords = array_filter(array_map('trim', explode(' ', $filter->value())));
+        $metaKeyPrefix = 'fau_degree_program_searchable_content_';
+        $metaKeys = is_string($languageCode) && $languageCode
+            ? [$metaKeyPrefix . $languageCode]
+            : [$metaKeyPrefix . MultilingualString::EN, $metaKeyPrefix . MultilingualString::DE];
+
+        $metaQuery = array_reduce($keywords, static function (array $metaQuery, string $keyword) use ($metaKeys): array {
+            $keywordConditions = array_map(
+                static fn($key) => [
+                    'key' => $key,
+                    'value' => $keyword,
+                    'compare' => 'LIKE',
+                ],
+                $metaKeys
             );
-        }
 
-        return $queryArgs->withMetaQueryItem(
-            [
-                'key' => 'fau_degree_program_searchable_content_' . $languageCode,
-                'value' => $filter->value(),
-                'compare' => 'LIKE',
-            ]
-        );
+            $metaQuery[] = ['relation' => 'OR'] + $keywordConditions;
+
+            return $metaQuery;
+        }, ['relation' => 'AND']);
+
+        return $queryArgs->withMetaQueryItem($metaQuery);
     }
 
     private function currentTerm(CollectionCriteria $criteria): ?WP_Term
diff --git a/tests/unit/Content/TaxonomyTest.php b/tests/unit/Content/TaxonomyTest.php
index 5563fb4..36beb4b 100644
--- a/tests/unit/Content/TaxonomyTest.php
+++ b/tests/unit/Content/TaxonomyTest.php
@@ -50,6 +50,22 @@ public function testTaxonomyArgGeneration(): void
             DegreeTaxonomy::public()->args()
         );
 
+        $this->assertSame(
+            [
+                'label' => 'Degrees',
+                'labels' => $expectedLabels,
+                'hierarchical' => true,
+                'rest_base' => 'degree',
+                'public' => false,
+                'show_ui' => true,
+                'show_in_menu' => true,
+                'show_in_nav_menus' => false,
+                'show_in_rest' => true,
+                'meta_box_cb' => false,
+            ],
+            DegreeTaxonomy::editableOnly()->args()
+        );
+
         $this->assertSame(
             [
                 'label' => 'Degrees',