Perhaps you should try some spelling variations:
duale studie » duale studien, duale studium, duales studium
e literatura » de literatura, y literatura, a literatura
tests duale » tests due, tests scale, tests damage
1 filosofia » e filosofia, a filosofia, y filosofia
e literatur » die literatur
studie 1 » studie 2, studie _

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