Perhaps you should try some spelling variations:
duale studien » duale studium, scale studien, duales studium
duale studie » duale studium, duales studium, dualen studium
e literatura » de literatura, y literatura, e literatur
1 filosofia » e filosofia, a filosofia, y filosofia
filosofia e » filosofia de, filosofia del

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: "tests ((duale studie) OR (duale studien)) 1 filosofia e literatura".
• Adding a wildcard symbol may retrieve word variants: tests ((duale studie) OR (duale studien)) 1 filosofia e literatura*.