diff --git a/Model/ResourceModel/Post/Fulltext/Collection.php b/Model/ResourceModel/Post/Fulltext/Collection.php
index 34cf3d5..59d4384 100755
--- a/Model/ResourceModel/Post/Fulltext/Collection.php
+++ b/Model/ResourceModel/Post/Fulltext/Collection.php
@@ -125,9 +125,9 @@ public function setStoreId($storeId)
      *
      * @return int
      */
-    public function getStoreId()
+    public function getStoreId(): int
     {
-        return $this->storeId;
+        return (int)$this->storeId;
     }
 
     /**
@@ -141,7 +141,7 @@ public function getStoreId()
      *
      * @return $this
      */
-    public function addStoreFilter($store, $withAdmin = true)
+    public function addStoreFilter($store, $withAdmin = true): static
     {
         if (is_object($store)) {
             $store = $store->getId();
@@ -157,13 +157,13 @@ public function addStoreFilter($store, $withAdmin = true)
     /**
      * Add search query filter
      *
-     * @param string $query Search query text.
+     * @param string $term Search query text.
      *
      * @return \Comwrap\ElasticsuiteBlog\Model\ResourceModel\Post\Fulltext\Collection
      */
-    public function addSearchFilter($query)
+    public function addSearchFilter($term): static
     {
-        $this->queryText = $query;
+        $this->queryText = $term;
 
         return $this;
     }