Perhaps you should try some spelling variations:
scales studien » scale studien, scale student, als studien
scale studies » scale study
la literature » la litterature, a literature, la literatura
di filosofia » la filosofia, e filosofia
filosofia la » filosofia da, filosofia le, filosofica da

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: sets ((scales studien) OR (scale studies)) di filosofia la literature*.