Perhaps you should try some spelling variations:
la litterature » a literature
duale studium » duales studium, dualen studium, das studium
filosofia la » filosofia da, filosofia le, filosofica da
i filosofia » di filosofia, e filosofia, a filosofia
studium i » studium im, studium _, studium 1

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (testo OR texto) duale studium i filosofia la litterature*.