Perhaps you should try some spelling variations:
duale studien » duale studium, scale studien, duales studium
di filosofia » la filosofia, e filosofia
e literatura » de literatura, y literatura, e literatur
quito duale » quito durante
a filosofia » la filosofia, e filosofia

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: "quito duale studien ((a filosofia) OR (di filosofia)) e literatura".
• Adding a wildcard symbol may retrieve word variants: quito duale studien ((a filosofia) OR (di filosofia)) e literatura*.