Perhaps you should try some spelling variations:
filosofia di » filosofia de, filosofia del, filosofia e
filosofia da » filosofia de, filosofia del, filosofia e
tests scale » tests stable, sets scale, tests safe
study la » study law, study lay, study lca

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 scale study la ((filosofia di) OR (filosofia da)) literatura*".