Perhaps you should try some spelling variations:
la literatura » la litterature, a literature
scale studien » scale studies, scale student, duale studien
a literatura » a literature, y literatura, a literatur
quito scale » equity scale, auto scale
a filosofia » la filosofia, e filosofia, di filosofia
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: "quito scale studien a filosofia ((a literatura) OR (la literatura))".
• Adding a wildcard symbol may retrieve word variants: quito scale studien a filosofia ((a literatura) OR (la literatura))*.