Perhaps you should try some spelling variations:
della literatura » della letteratura, nella letteratura, la literatura
pela literatura » pena literatura, la literatura, a literatura
duales studium » das studium
text duales » text dates, text modules
3 filosofia » e filosofia, a filosofia, y filosofia
studium 3 » studium _, studium 1, studium 8

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: "text duales studium 3 filosofia ((della literatura) OR (pela literatura))*".