Perhaps you should try some spelling variations:
de literatura » de litterature, la literatura, y literatura
scale studien » scale studies, scale student, duale studien
filosofia de » filosofia del
studien la » studien lap, studien a, studien l

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (testo OR tests) scale studien la filosofia de literatura.
• Adding a wildcard symbol may retrieve word variants: (testo or tests) scale studien la filosofia de literatura*.