Perhaps you should try some spelling variations:
scale studien » scale student, duale studien, soziale studien
scale studies » scale study
da filosofia » la filosofia, a filosofia, de filosofia
di filosofia » la filosofia, e filosofia
literatur » literature

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: "texto ((scale studien) OR (scale studies)) ((da filosofia) OR (di filosofia)) die literatur".
• Adding a wildcard symbol may retrieve word variants: texto ((scale studien) OR (scale studies)) ((da filosofia) OR (di filosofia)) die literatur*.