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

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "test dem studium ((d filosofia) OR (da filosofia)) le literatura".
• Adding a wildcard symbol may retrieve word variants: test dem studium ((d filosofia) OR (da filosofia)) le literatura*.