Perhaps you should try some spelling variations:
da literature » a literature, da literatura, la literature
di filosofia » la filosofia, e filosofia
dem studium » das studium, im studium, zum studium
a filosofia » la 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 ((a filosofia) OR (di filosofia)) da literature".
• Adding a wildcard symbol may retrieve word variants: test dem studium ((a filosofia) OR (di filosofia)) da literature*.