diff --git a/lyric_search_new/sources/cache.py b/lyric_search_new/sources/cache.py
index f63fa36..9dc9386 100644
--- a/lyric_search_new/sources/cache.py
+++ b/lyric_search_new/sources/cache.py
@@ -80,9 +80,16 @@ class Cache:
         """
         logging.debug("Checking whether %s is already stored", 
                       artistsong.replace("\n", " - "))
-        check_query = "SELECT id FROM lyrics WHERE artistsong LIKE ? LIMIT 1"
-        params = (f"%{artistsong}%",)
+        check_query: str = 'SELECT id, artist, song FROM lyrics  WHERE editdist3((lower(artist) || " " || lower(song)), (? || " " || ?))\
+                        <= 410 ORDER BY editdist3((lower(artist) || " " || lower(song)), ?) ASC LIMIT 1'
+        artistsong_split = artistsong.split("\n", maxsplit=1)
+        artist = artistsong_split[0].lower()
+        song = artistsong_split[1].lower()
+        params = (artist, song, artistsong.lower())
         async with sqlite3.connect(self.cache_db, timeout=2) as db_conn:
+            await db_conn.enable_load_extension(True)
+            for ext in self.sqlite_exts:
+                await db_conn.load_extension(ext)            
             async with await db_conn.executescript(self.cache_pre_query) as _db_cursor: 
                 async with await db_conn.execute(check_query, params) as db_cursor:
                     result = await db_cursor.fetchone()