Perhaps you should try some spelling variations:
life literature » polite literature, prose literature
filosofia life » filosofia le, filosofia de, filosofia e
dualen studium » duales studium
duale studium » duales studium, das studium
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: "test ((duale studium) OR (dualen studium)) de filosofia life literature*".