Perhaps you should try some spelling variations:
filosofia a » filosofia da, filosofia la, filosofia _
filosofia e » filosofia de, filosofia del
studium ii » studium im, studium i, studium die
d studium » _ studium, 2 studium, 4 studium
test d » test de, test do, test der

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "test d studium ii ((filosofia a) OR (filosofia e)) literatura".
• Adding a wildcard symbol may retrieve word variants: test d studium ii ((filosofia a) OR (filosofia e)) literatura*.