Perhaps you should try some spelling variations:
e literatura » de literatura, y literatura, e literatur
sets scaled » sets scale, sets scales, less scaled
studien die » studie die, studien der
filosofia e » filosofia de, filosofia del
studien de » studien der, studien des, studien dd

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: "sets scaled ((studien de) OR (studien die)) filosofia e literatura*".