Perhaps you should try some spelling variations:
der filosofica » de filosofia, e filosofica, e filosofia
filosofica a » filosofica da, filosofica e, filosofica _
a literatura » la literatura, a literature, y literatura
studien der » studie der, studenten der
test als » test acts, test act
test ast » test act, test acts, test auf
test a » test act

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: ((((test als) OR (test ast))) OR (test a)) studien der filosofica a literatura.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((test als) OR (test ast))) or (test a)) studien der filosofica a literatura".
• Adding a wildcard symbol may retrieve word variants: ((((test als) OR (test ast))) or (test a)) studien der filosofica a literatura*.