Perhaps you should try some spelling variations:
de litterature » la litterature
et litterature » la litterature, art literature
da filosofia » la filosofia, di filosofia, a filosofia
studium da » studium das, studium a, studium d
test das » test des, test day, west das

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 studium da filosofia ((de litterature) OR (et litterature))*".