Perhaps you should try some spelling variations:
filosofia da » filosofia de, filosofia del, filosofia della
des studium » des studiums, das studium, dem studium
filosofia e » filosofia de, filosofia del
studium ii » studium im, studium i, studium die
text des » text 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: "text des studium ii ((filosofia da) OR (filosofia e)) literatura".
• Adding a wildcard symbol may retrieve word variants: text des studium ii ((filosofia da) OR (filosofia e)) literatura*.