Perhaps you should try some spelling variations:
frage studien » lage studien, frage stellen, erste studien
tests frage » tests fake, tests free, tests face
studien die » studie die, studien der
filologia y » filologica e, filosofia y, biologia y
filologia e » filologica e, fisiologia e, filologici e

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 frage studien die ((filologia y) OR (filologia e)) literatura".
• Adding a wildcard symbol may retrieve word variants: tests frage studien die ((filologia y) OR (filologia e)) literatura*.