Perhaps you should try some spelling variations:
des filologia » de filologia, di filologia, e filologia
de literatura » de litterature, la literatura, y literatura
e literatura » y literatura, e literatur, a literatura
studium des » studium der
text das » text des, text data, text 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: "text das studium des filologia ((e literatura) OR (de literatura))".
• Adding a wildcard symbol may retrieve word variants: text das studium des filologia ((e literatura) OR (de literatura))*.