Perhaps you should try some spelling variations:
da literature » a literature, da literatura, la literature
filosofia da » filosofia de, filosofia del, filosofia e
test duale » test double, test delle, test orale
studium dd » studium ad, studium der, studium des
studium d » studium ad, studium _, studium 1

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 duale ((studium dd) OR (studium d)) filosofia da literature*".