Perhaps you should try some spelling variations:
scale studies » scale study
ds filosofia » de filosofia, da filosofia, la filosofia
di filosofia » la filosofia, e filosofia
a literatura » la literatura, a literature, y literatura
sets scale » sets scaled, sets scales, set scale

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: sets scale studies ((ds filosofia) OR (di filosofia)) a literatura.
• Adding a wildcard symbol may retrieve word variants: sets scale studies ((ds filosofia) or (di filosofia)) a literatura*.