Perhaps you should try some spelling variations:
del literatura » de literatura, pela literatura, e literatura
da literatura » la literatura, a literatura, de literatura
texten das » texten des, texten der, texten aus
studium la » studium a, studium als, studium 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: "texten das studium la filosofia ((del literatura) OR (da literatura))*".