Perhaps you should try some spelling variations:
y literatura » la literatura
studium das » studium der, studium die, studium als
studium des » studium der
filosofia y » filosofia e, filosofia _, filosofia de
studium la » studium a, studium als, studium _

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 der ((studium la) OR (((studium das) OR (studium des)))) filosofia y literatura.
• The words AND, OR and NOT may confuse the search; try adding quotes: "text der ((studium la) or (((studium das) OR (studium des)))) filosofia y literatura".
• Adding a wildcard symbol may retrieve word variants: text der ((studium la) or (((studium das) OR (studium des)))) filosofia y literatura*.