Perhaps you should try some spelling variations:
filosofia con » filosofia del, filosofia de, filosofia e
filosofia en » filosofia e, filosofia del, filosofia de
day studium » das studium, d studium, day studies
dem studium » das studium, im studium, zum 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 (dem studium)) da ((filosofia en) OR (filosofia con)) litterature.
• The words AND, OR and NOT may confuse the search; try adding quotes: "test ((day studium) or (dem studium)) da ((filosofia en) OR (filosofia con)) litterature".
• Adding a wildcard symbol may retrieve word variants: test ((day studium) or (dem studium)) da ((filosofia en) OR (filosofia con)) litterature*.