Perhaps you should try some spelling variations:
pela literatura » pena literatura, la literatura, a literatura
scale studien » scale studies, scale student, duale studien
equity scale » equity sale, equity style, equity share
a filosofia » la filosofia, di filosofia
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: "equity scale studien ((a filosofia) OR (e filosofia)) pela literatura*".