Perhaps you should try some spelling variations:
le literatura » la literatura, de literatura, e literatura
filosofia le » filosofia de, filosofia e, filosofia del
tests scale » tests stable, sets scale, tests safe
d filosofia » di filosofia, de filosofia, da filosofia
test scale » best scale, rest scale, treat 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: ((test scale) OR (tests scale)) study d filosofia le literatura.
• Adding a wildcard symbol may retrieve word variants: ((test scale) or (tests scale)) study d filosofia le literatura*.