Perhaps you should try some spelling variations:
duales studium » das studium
scale studien » scale studies, scale student, duale studien
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 ((scale studien) OR (duales studium)) e filosofia e literatura*.