diff --git a/app/api/search.py b/app/api/search.py
index 4d2aca3..2278416 100644
--- a/app/api/search.py
+++ b/app/api/search.py
@@ -19,7 +19,10 @@ def query_in_quotes(query: str) -> bool:
     """
     Returns True if the query is in quotes
     """
-    return query.startswith('"') and query.endswith('"')
+    try:
+        return query.startswith('"') and query.endswith('"')
+    except AttributeError:
+        return False
 
 
 class Search:
@@ -51,9 +54,13 @@ class Search:
             self.query, albums_only=True, in_quotes=in_quotes
         )
 
-    def get_top_results(self, in_quotes=False):
+    def get_top_results(
+        self,
+        limit: int,
+        in_quotes=False,
+    ):
         finder = searchlib.TopResults()
-        return finder.search(self.query, in_quotes=in_quotes)
+        return finder.search(self.query, in_quotes=in_quotes, limit=limit)
 
 
 @api.route("/search/tracks", methods=["GET"])
@@ -122,12 +129,15 @@ def get_top_results():
     """
 
     query = request.args.get("q")
+    limit = request.args.get("limit", "6")
+    limit = int(limit)
+
     in_quotes = query_in_quotes(query)
 
     if not query:
         return {"error": "No query provided"}, 400
 
-    return Search(query).get_top_results(in_quotes=in_quotes)
+    return Search(query).get_top_results(in_quotes=in_quotes, limit=limit)
 
 
 @api.route("/search/loadmore")
diff --git a/app/lib/searchlib.py b/app/lib/searchlib.py
index f8ed947..a655013 100644
--- a/app/lib/searchlib.py
+++ b/app/lib/searchlib.py
@@ -274,13 +274,19 @@ class TopResults:
             return albums[:limit]
 
     @staticmethod
-    def search(query: str, albums_only=False, tracks_only=False, in_quotes=False):
+    def search(
+        query: str,
+        limit: int = None,
+        albums_only=False,
+        tracks_only=False,
+        in_quotes=False,
+    ):
         items, titles = TopResults.collect_all()
         results = TopResults.get_results(titles, query)
 
-        tracks_limit = Limit.tracks if tracks_only else 5
-        albums_limit = Limit.albums if albums_only else 6
-        artists_limit = 3
+        tracks_limit = Limit.tracks if tracks_only else 4
+        albums_limit = Limit.albums if albums_only else limit
+        artists_limit = limit
 
         # map results to their respective items
         try:
diff --git a/app/models/track.py b/app/models/track.py
index a13d0ed..42b2a98 100644
--- a/app/models/track.py
+++ b/app/models/track.py
@@ -2,9 +2,13 @@ from dataclasses import dataclass
 
 from app.settings import ParserFlags, get_flag
 from app.utils.hashing import create_hash
-from app.utils.parsers import (clean_title, get_base_title_and_versions,
-                               parse_feat_from_title, remove_prod,
-                               split_artists)
+from app.utils.parsers import (
+    clean_title,
+    get_base_title_and_versions,
+    parse_feat_from_title,
+    remove_prod,
+    split_artists,
+)
 
 from .artist import ArtistMinimal
 
@@ -51,8 +55,10 @@ class Track:
 
             if get_flag(ParserFlags.EXTRACT_FEAT):
                 featured, new_title = parse_feat_from_title(self.title)
-                original_lower = "-".join([a.lower() for a in artists])
-                artists.extend([a for a in featured if a.lower() not in original_lower])
+                original_lower = "-".join([create_hash(a) for a in artists])
+                artists.extend(
+                    [a for a in featured if create_hash(a) not in original_lower]
+                )
 
             if get_flag(ParserFlags.REMOVE_PROD):
                 new_title = remove_prod(new_title)
@@ -121,7 +127,7 @@ class Track:
 
     def add_artists(self, artists: list[str], new_album_title: str):
         for artist in artists:
-            if create_hash(artist) not in self.artist_hashes:
+            if create_hash(artist, decode=True) not in self.artist_hashes:
                 self.artists.append(ArtistMinimal(artist))
 
         self.recreate_artists_hash()
diff --git a/app/utils/hashing.py b/app/utils/hashing.py
index 6492784..b501a4e 100644
--- a/app/utils/hashing.py
+++ b/app/utils/hashing.py
@@ -1,4 +1,5 @@
 import hashlib
+import re
 
 from unidecode import unidecode
 
@@ -14,6 +15,7 @@ def create_hash(*args: str, decode=False, limit=10) -> str:
 
     str_ = str_.lower().strip().replace(" ", "")
     str_ = "".join(t for t in str_ if t.isalnum())
+    str_ = re.sub(r"[^a-zA-Z0-9\s]", "", str_)
     str_ = str_.encode("utf-8")
     str_ = hashlib.sha256(str_).hexdigest()
     return str_[-limit:]
diff --git a/app/utils/parsers.py b/app/utils/parsers.py
index 7bc498e..44cf19e 100644
--- a/app/utils/parsers.py
+++ b/app/utils/parsers.py
@@ -133,6 +133,8 @@ def get_album_info(bracket_text: str | None) -> list[str]:
     if not bracket_text:
         return []
 
+    # replace all non-alphanumeric characters with an empty string
+    bracket_text = re.sub(r"[^a-zA-Z0-9\s]", "", bracket_text)
     versions = []
 
     for version_keywords in AlbumVersionEnum: