Perhaps you should try some spelling variations:
target studien » target studies, targets studies, target station
tests target » test target, tester target, test targets
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.

• If you are trying to use Boolean operators, they must be ALL CAPS: tests target studien die ((filologia y) OR (filologia e)) literatura*.