Perhaps you should try some spelling variations:
filosofia de » filosofia del
de literatur » de literatura, de literatuur, de litterature
3 filosofia » e filosofia, a filosofia, y filosofia
studium 3 » studium _, studium 1, studium 8
test das » test des, west das, testen das
test day » rest day, test data, feast day

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 das) OR (test day)) studium 3 filosofia de literatur".
• Adding a wildcard symbol may retrieve word variants: ((test das) OR (test day)) studium 3 filosofia de literatur*.