Perhaps you should try some spelling variations:
le literatura » la literatura, de literatura, e literatura
da filosofia » la filosofia, di filosofia, de filosofia
a filosofia » la filosofia, e filosofia, di filosofia
sets scale » sets scaled, sets scales, set scale

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: "sets scale study ((da filosofia) OR (a filosofia)) le literatura*".