Perhaps you should try some spelling variations:
filosofia la » filosofia da, filosofia le, filosofica da
dem studium » das studium, im studium, zum studium
filosofia a » filosofia da, filosofia e, filosofia y
filosofia _ » filosofia e, filosofia y, filosofia de
studium a » studium am, studium ad, studium _
test dem » test der, test des, test de

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 dem studium a ((((filosofia a) OR (filosofia _))) OR (filosofia la)) literature*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "test dem studium a ((((filosofia a) OR (filosofia _))) or (filosofia la)) literature*".