Perhaps you should try some spelling variations:
scale studies » scale study
filosofica e » filosofia e, filosofica da, filosofia de
tests scale » tests stable, sets scale, tests safe
filosofia _ » filosofia e, filosofia y, filosofia de
studies de » studies der, studies die, studies doe

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 scale studies de ((filosofia _) OR (filosofica e)) literatura.
• Adding a wildcard symbol may retrieve word variants: tests scale studies de ((filosofia _) or (filosofica e)) literatura*.