Perhaps you should try some spelling variations:
during studium » during sodium, during studies, during study
der filosofica » e filosofica, e filosofia, di filosofia
da literatura » la literatura, a literatura, de literatura
tests during » costs during, protests during, testing during
de filosofia » e filosofia, di filosofia, la filosofia

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 studium ((der filosofica) OR (de filosofia)) da literatura*".