Perhaps you should try some spelling variations:
et litterature » la litterature, art literature
filosofia et » filosofia e, filosofia en, filosofia del
test duale » test double, test delle, test orale
studium dd » studium d, studium der, studium des
studium ad » studium am, studium a, studium d

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 ad)) filosofia et litterature".
• Adding a wildcard symbol may retrieve word variants: test duale ((studium dd) OR (studium ad)) filosofia et litterature*.