Perhaps you should try some spelling variations:
de literatura » de litterature, y literatura, a literatura
la literatura » la litterature, a literature
i filosofia » di filosofia, e filosofia, a filosofia
studium i » studium im, studium _, studium 1
best das » best days, west das, bist das

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 das studium i filosofia ((de literatura) OR (la literatura))".
• Adding a wildcard symbol may retrieve word variants: best das studium i filosofia ((de literatura) OR (la literatura))*.