Perhaps you should try some spelling variations:
da literatura » a literatura, de literatura, na literatura
la literatura » la litterature, a literature
de filosofia » e filosofia, di filosofia, la filosofia
sets case » assets case, sets based, sets can
study de » study die, study der, study dem

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