Perhaps you should try some spelling variations:
tests during » protests during, testing during, forests during
costs during » costs using
e filosofia » la filosofia
filosofia e » filosofia de, filosofia del
steady e » steady _, steady a, steady 2
literatur » literature

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: "((tests during) OR (costs during)) steady e filosofia e literatur".
• Adding a wildcard symbol may retrieve word variants: ((tests during) OR (costs during)) steady e filosofia e literatur*.