Perhaps you should try some spelling variations:
die filosofia » di filosofia, e filosofia, da filosofia
del literatur » model literatur, teil literatur, igel literatur
de filosofia » e filosofia, di filosofia, la filosofia
next social » context social, agent social, great social
best social » west social, east social, ist social

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: ((next social) OR (best social)) studies ((die filosofia) OR (de filosofia)) del literatur.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((next social) or (best social)) studies ((die filosofia) OR (de filosofia)) del literatur".
• Adding a wildcard symbol may retrieve word variants: ((next social) or (best social)) studies ((die filosofia) OR (de filosofia)) del literatur*.