Perhaps you should try some spelling variations:
best teilstudie » der teilstudie, access teilstudie
de literatura » de litterature, la literatura, y literatura
teilstudie 2 » teilstudie i, teilstudie ii, teilstudie iii
de filosofia » e filosofia, di filosofia, a filosofia

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: "best teilstudie 2 ((de filosofia) OR (la filosofia)) de literatura*".