Perhaps you should try some spelling variations:
during studie » during studies, during study, during soldier
da literatura » la literatura, a literatura, na literatura
de literatura » de litterature, la literatura, y literatura
costs during » costs using
a filosofia » la filosofia, e filosofia, di filosofia
studie a » studie am, studie 2, studie _

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: costs during studie a filosofia ((da literatura) OR (de literatura)).
• Adding a wildcard symbol may retrieve word variants: costs during studie a filosofia ((da literatura) or (de literatura))*.