Perhaps you should try some spelling variations:
scale studien » scale student, duale studien, soziale studien
scale studies » scale study
filosofia da » filosofia de, filosofia del, filosofia della
filosofia e » filosofia de, filosofia del

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: quito ((scale studien) OR (scale studies)) a ((filosofia da) OR (filosofia e)) literatura.
• The words AND, OR and NOT may confuse the search; try adding quotes: "quito ((scale studien) OR (scale studies)) a ((filosofia da) or (filosofia e)) literatura".
• Adding a wildcard symbol may retrieve word variants: quito ((scale studien) OR (scale studies)) a ((filosofia da) or (filosofia e)) literatura*.