Perhaps you should try some spelling variations:
filosofia la » filosofia da, filosofica da, filosofia das
filosofia le » filosofia de, filosofia e, filosofia del
day studium » das studium, dem studium, d studium
zum studium » fur studium, im studium

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

• If you are trying to use Boolean operators, they must be ALL CAPS: test ((day studium) OR (zum studium)) da ((filosofia la) OR (filosofia le)) litterature.
• The words AND, OR and NOT may confuse the search; try adding quotes: "test ((day studium) or (zum studium)) da ((filosofia la) OR (filosofia le)) litterature".
• Adding a wildcard symbol may retrieve word variants: test ((day studium) or (zum studium)) da ((filosofia la) OR (filosofia le)) litterature*.