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
ideal study » ideal setups
real study » really study, legal study, al study

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 ((ideal study) OR (real study)) der filosofica a literatura".
• Adding a wildcard symbol may retrieve word variants: test ((ideal study) OR (real study)) der filosofica a literatura*.