Perhaps you should try some spelling variations:
del literatura » de literatura, pela literatura, da literatura
a filosofia » la filosofia, e filosofia, di filosofia
studium a » studium am, studium ad, studium _
text das » text des, text data, text der

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

• Adding a wildcard symbol may retrieve word variants: text das studium a filosofia del literatura*.