Perhaps you should try some spelling variations:
e literatura » de literatura, y literatura, e literatur
die studies » diet studies, die studien, adme studies
y filosofia » e filosofia, a filosofia, la filosofia
filosofia e » filosofia de, filosofia del
die studie » eine studie

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: test ((die studie) OR (die studies)) y filosofia e literatura.
• Adding a wildcard symbol may retrieve word variants: test ((die studie) or (die studies)) y filosofia e literatura*.