Perhaps you should try some spelling variations:
di literatura » de literatura, da literatura, ii literatura
filosofia di » filosofia de, filosofia da, filosofia del
di filosofia » la filosofia, e filosofia
studium di » studium die, studium i, studium ii
testo das » test das, testen das, test dast
tests das » tests des, test das, tests data

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: "((testo das) OR (tests das)) studium di filosofia di literatura*".