Perhaps you should try some spelling variations:
der filosofica » de filosofia, e filosofica, e filosofia
da litterature » la litterature, de litterature, a litterature
filosofica da » filosofia da, filosofia de, filosofia di
devo studies » vivo studies, divo studie, ego studies
do studies » do studios, mo studies, two studies

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 ((do studies) OR (devo studies)) der filosofica da litterature*".