Perhaps you should try some spelling variations:
das filosofia » da filosofia, la filosofia, di filosofia
da literatura » la literatura, a literatura, de literatura
filosofia da » filosofia de, filosofia del, filosofia e
studium das » studium des, studium der, studium die
test de » test der, test 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: ((test de) OR (est de)) studium das filosofia da literatura.
• Adding a wildcard symbol may retrieve word variants: ((test de) or (est de)) studium das filosofia da literatura*.