Perhaps you should try some spelling variations:
scales studien » scale studien, scale studies, scale student
di literatura » de literatura, ii literatura, di letteratura
da literatura » a literatura, de literatura, na literatura
la literatura » la litterature, a literature
de filosofia » e filosofia, di filosofia, la filosofia
sets scales » sets scale, sets scaled, sets locales
studien de » studien der, studien die, studien des

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: sets scales studien de filosofia ((((di literatura) OR (da literatura))) OR (la literatura)).
• Adding a wildcard symbol may retrieve word variants: sets scales studien de filosofia ((((di literatura) or (da literatura))) or (la literatura))*.