Perhaps you should try some spelling variations:
scale studie » scale studies, scale studien, scale study
filosofia de » filosofia del
filosofia e » filosofia del
sets scale » sets scaled, sets scales, set scale
studie die » studie der
literatur » literature

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 scale studie die ((filosofia de) OR (filosofia e)) literatur.
• Adding a wildcard symbol may retrieve word variants: sets scale studie die ((filosofia de) or (filosofia e)) literatur*.