Perhaps you should try some spelling variations:
life literature » polite literature, prose literature
filosofia life » filosofia le, filosofia de, filosofia e
delle studien » delphi studien, modell studien, welche studien
duale studien » duale studium, scale studien, duales studium
di filosofia » la filosofia, e 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 ((delle studien) OR (duale studien)) di filosofia life literature*".