Fixes checkTermExists bug

diff --git a/src/library/index_bundle_iterators/IntersectIterator.php b/src/library/index_bundle_iterators/IntersectIterator.php
index 2acfd225f..613ca0011 100644
--- a/src/library/index_bundle_iterators/IntersectIterator.php
+++ b/src/library/index_bundle_iterators/IntersectIterator.php
@@ -557,6 +557,6 @@ class IntersectIterator extends IndexBundleIterator
         foreach ($this->index_bundle_iterators as $iterator) {
             $max_relevance += $iterator->getMaxRelevanceScore();
         }
-        return $max_score;
+        return $max_relevance;
     }
 }
diff --git a/src/library/index_bundle_iterators/WordIterator.php b/src/library/index_bundle_iterators/WordIterator.php
index 746934639..7cbde614d 100644
--- a/src/library/index_bundle_iterators/WordIterator.php
+++ b/src/library/index_bundle_iterators/WordIterator.php
@@ -600,8 +600,8 @@ class WordIterator extends IndexBundleIterator
                             $docid_len);
                         $terms_filter = substr($latest_doc_map_entry,
                             $docid_len + 1, $termsfilter_len);
-                        if (!$this->checkTermExists($this->word_key,
-                            $terms_filter)) {
+                        if (!IndexDocumentBundle::checkTermExists(
+                                $this->word_key, $terms_filter)) {
                             continue;
                         } else {
                             /**