Perhaps you should try some spelling variations:
scale studien » scale studies, scale student, duale studien
su filosofia » la filosofia, e filosofia, di filosofia
y literatura » la literatura
filosofia y » filosofia e, filosofia _, filosofia de
studien su » studien so, studien aus, studien auf

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 su filosofia y literatura.
• Adding a wildcard symbol may retrieve word variants: (testo or tests) scale studien su filosofia y literatura*.