Perhaps you should try some spelling variations:
die filosofia » di filosofia, de filosofia, da filosofia
di literatura » de literatura, da literatura, ii literatura
scale studie » scale studies, scale studien, scale study
tests scale » tests stable, sets scale, tests safe
e filosofia » la filosofia

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 studie ((die filosofia) OR (e filosofia)) di literatura*".