Perhaps you should try some spelling variations:
del literature » model literature, abel literature, fuel literature
di filosofia » la filosofia, e filosofia
des studium » des studiums, das studium, dem studium
studium di » studium die, studium i, studium ii
test des » test der, test test

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

• Adding a wildcard symbol may retrieve word variants: test des studium di filosofia del literature*.