Perhaps you should try some spelling variations:
scale studien » scale studies, scale student, duale studien
filosofia de » filosofia del
texto scale » femto scale, texture scale, texto social
studien der » studie der, studenten der
filosofia y » filosofia e, filosofia _, filosofia da

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: texto scale studien der ((filosofia y) OR (filosofia de)) literatura*.