Perhaps you should try some spelling variations:
da literatura » la literatura, de literatura, na literatura
2 filosofica » e filosofica, e filosofia, a filosofia
a literatura » la literatura, a literature, y literatura
do studie » divo studie, die studie, do studios
test do » test de, test d, test der

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: test do studie 2 filosofica ((da literatura) OR (a literatura)).
• Adding a wildcard symbol may retrieve word variants: test do studie 2 filosofica ((da literatura) or (a literatura))*.