Perhaps you should try some spelling variations:
duale studium » duales studium, dualen studium, das studium
de literatura » de litterature, la literatura, a literatura
d filosofica » e filosofica, e filosofia, di filosofia
y literatura » la literatura
test duale » test double, test delle, test orale
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 d filosofica ((de literatura) OR (y literatura))*".