Perhaps you should try some spelling variations:
de literatura » de litterature, la literatura, a literatura
y literatura » la literatura
dem studium » das studium, im studium, zum studium
studium la » studium a, studium als, studium das
text dem » text der, text des, text den

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: text dem studium la filosofia ((de literatura) OR (y literatura)).
• Adding a wildcard symbol may retrieve word variants: text dem studium la filosofia ((de literatura) or (y literatura))*.