Perhaps you should try some spelling variations:
tests stable » tests table, sets stable, test table
stable state » stable states, mutable state, unstable states
filosofia da » filosofia del, filosofia e, filosofia della
filosofia de » filosofia del
state die » states die, state diet, state dive

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: "tests stable state die ((filosofia da) OR (filosofia de)) literatura".
• Adding a wildcard symbol may retrieve word variants: tests stable state die ((filosofia da) OR (filosofia de)) literatura*.