Perhaps you should try some spelling variations:
filosofica a » filosofica da, filosofica _, filosofico a
filosofica e » filosofia e, filosofica da, filosofia de
tests space » texts space, lists space, meets space
studien die » studie die, studien der
test space » cost space, dust space, fast space

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