Perhaps you should try some spelling variations:
die filosofica » di filosofia, de filosofia, e filosofica
space studied » spaces studied, space studies, shape studied
state studied » state studies, have studied, state study
filosofica a » filosofica da, filosofica e, filosofica _
a literatura » la literatura, a literature, y literatura

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: "test ((space studied) OR (state studied)) die filosofica a literatura".
• Adding a wildcard symbol may retrieve word variants: test ((space studied) OR (state studied)) die filosofica a literatura*.