Perhaps you should try some spelling variations:
duale studie » duale studien, duale studium, duales studium
filosofia la » filosofica da, filosofia das, filosofia uma
filosofia le » filosofia de, filosofia e, filosofia del
filosofia da » filosofia de, filosofia del, filosofia e
tests duale » tests due, tests scale, tests damage
studie die » studie der

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: tests duale studie die ((((filosofia la) OR (filosofia le))) OR (filosofia da)) literatura.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tests duale studie die ((((filosofia la) OR (filosofia le))) or (filosofia da)) literatura".
• Adding a wildcard symbol may retrieve word variants: tests duale studie die ((((filosofia la) OR (filosofia le))) or (filosofia da)) literatura*.