Perhaps you should try some spelling variations:
la litterature » a literature
die filosofica » di filosofia, de filosofia, e filosofica
la literatura » a literature
duale studie » duale studien, duale studium, duales studium
best duale » best deal, best deals, best scale
studie die » studie der

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: "best duale studie die filosofica ((la literatura) OR (la litterature))*".