Perhaps you should try some spelling variations:
del literatura » de literatura, pela literatura, da literatura
teil studien » teilstudie i, teilstudie 2
dd filosofia » di filosofia, de filosofia, da filosofia
teil studie » soil studies, teilstudie i, teilstudie 2

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 ((teil studien) OR (teil studie)) dd filosofia del literatura*".