Perhaps you should try some spelling variations:
filosofia pena » filosofia en, filosofia della, filosofia parfa
filosofia para » filosofia da, filosofia morale
scale studien » scale studies, scale student, duale studien
equity scale » equity sale, equity style, equity share
studien a » studien am, studien _, studien 3

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 pena) OR (filosofia para)) literatura*".