Approval.

backend/pl/basis.json

@@ -41,7 +41,7 @@
         "already_known": "Jest ju\u017c znane",
         "back": "powr\u00f3t",
         "found": "Znaleziono",
-        "or": "Lub",
+        "or": "or",
         "literature": "Publikacje",
         "weblink": "Odno\u015bnik WWW",
         "document": "Dokument",
@@ -149,6 +149,8 @@
         "unknown": "Unknown",
         "discussions": "Discussions",
         "improvement_suggestions": "Suggestions for improvement",
-        "not": "Not"
+        "not": "not",
+        "search_term": "Search term",
+        "and": "and"
     }
 }