Perhaps you should try some spelling variations:
scales studies » cases studies, shapes studies, states studies
scale studies » scale study
scale studien » scale student, duale studien, soziale studien
dd filosofia » di filosofia, de filosofia, da filosofia
e literatura » de literatura, y literatura, e literatur
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: sets ((((scales studies) OR (scale studies))) OR (scale studien)) dd filosofia e literatura.
• The words AND, OR and NOT may confuse the search; try adding quotes: "sets ((((scales studies) OR (scale studies))) or (scale studien)) dd filosofia e literatura".
• Adding a wildcard symbol may retrieve word variants: sets ((((scales studies) OR (scale studies))) or (scale studien)) dd filosofia e literatura*.