Perhaps you should try some spelling variations:
da literatura » la literatura, de literatura, na literatura
scale studien » scale studies, scale student, duale studien
a literatura » la literatura, a literature, y literatura
burst scale » bast scale, best scale, just scale
e filosofia » la filosofia
studien e » studien es, studien _, studien 3

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: burst scale studien e filosofia ((a literatura) OR (da literatura)).
• Adding a wildcard symbol may retrieve word variants: burst scale studien e filosofia ((a literatura) or (da literatura))*.