Perhaps you should try some spelling variations:
soziale studien » soziale medien, soziale sterben, scale studien
duale studien » duale studium, scale studien, duales studium
e literatura » de literatura, y literatura, e literatur
e filosofia » la filosofia
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: set ((soziale studien) OR (duale studien)) e filosofia e literatura.
• Adding a wildcard symbol may retrieve word variants: set ((soziale studien) or (duale studien)) e filosofia e literatura*.