Perhaps you should try some spelling variations:
scale studien » scale studies, scale student, duale studien
da literature » a literature, da literatura, la literature
de filosofia » di filosofia, la filosofia, a filosofia
e filosofia » la filosofia
sets scale » sets scaled, sets scales, set scale

You may be able to get more results by adjusting your search query.

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