Perhaps you should try some spelling variations:
scale studien » scale studies, scale student, duale studien
des filosofia » de filosofia, di filosofia, da filosofia
de literature » de litterature, de lite'rature, de literatura
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 ((des filosofia) OR (e filosofia)) de literature".
• Adding a wildcard symbol may retrieve word variants: sets scale studien ((des filosofia) OR (e filosofia)) de literature*.