Perhaps you should try some spelling variations:
le literatura » la literatura, de literatura, e literatura
da filosofia » la filosofia, di filosofia, a filosofia
de filosofia » e filosofia, di filosofia, la filosofia
dem studium » das studium, im studium, zum studium
test dem » test der, test des, test de

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 dem studium ((de filosofia) OR (da filosofia)) le literatura.
• Adding a wildcard symbol may retrieve word variants: test dem studium ((de filosofia) or (da filosofia)) le literatura*.