Perhaps you should try some spelling variations:
state studied » state studies, have studied, state study
filosofia la » filosofia da, filosofia le, filosofica da
filosofia a » filosofia da, filosofia e, filosofia _
test state » test stated, test stage, best state
studied e » studied _, studied 3, studied 5

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 state studied e ((filosofia a) OR (filosofia la)) literatura".
• Adding a wildcard symbol may retrieve word variants: test state studied e ((filosofia a) OR (filosofia la)) literatura*.