Perhaps you should try some spelling variations:
da literature » a literature, da literatura, la literature
duale studium » duales studium, dualen studium, das studium
dd filosofia » di filosofia, de filosofia, la filosofia
da filosofia » la filosofia, di filosofia, a filosofia
test duale » test double, test delle, test orale

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 filosofia) OR (da filosofia)) da literature*".