Perhaps you should try some spelling variations:
selbst studium » selbststudium 1, im selbststudium
le letterature » e letterature, la litterature, e letteratura
das filosofia » da filosofia, la filosofia, di filosofia
test studium » des studium, test studies, das studium
filosofia le » filosofia de, filosofia e, filosofia del

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 ((test studium) OR (selbst studium)) das filosofia le letterature".
• Adding a wildcard symbol may retrieve word variants: test ((test studium) OR (selbst studium)) das filosofia le letterature*.