Perhaps you should try some spelling variations:
le literatura » la literatura, de literatura, de litteratura
e literatura » de literatura, y literatura, e literatur
texten das » texten des, texten der, text das
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 ((le literatura) OR (e literatura))*".