Perhaps you should try some spelling variations:
filosofica a » filosofica da, filosofica _, filosofico a
filosofica e » filosofia e, filosofica da, filosofia de
tests table » test tables, results table, test suitable
studies doe » studies does, studies dose, studies do
studies de » studies der, studies die, studies due

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