Perhaps you should try some spelling variations:
de literatura » de litterature, la literatura, y literatura
estudio desde » estudio de, estudio del, studio des
studio delle » studio della, estudio del
filosofia de » filosofia del
estudios de » estudio de
bist das » ist das, geist das, brust das
list das » ist das, list des, kleist das

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: ((bist das) OR (list das)) ((studio delle) OR (((estudio desde) OR (estudios de)))) filosofia de literatura.
• Adding a wildcard symbol may retrieve word variants: ((bist das) or (list das)) ((studio delle) or (((estudio desde) or (estudios de)))) filosofia de literatura*.