Perhaps you should try some spelling variations:
le literatura » la literatura, de literatura, e literatura
filosofia le » filosofia de, filosofia e, filosofia del
1 filosofia » e filosofia, a filosofia, y filosofia
texten das » texten des, texten der, texten aus
studium 1 » studium _, studium 3, studium 8
text das » text des, text data, text der

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: ((texten das) OR (text das)) studium 1 filosofia le literatura*.