Perhaps you should try some spelling variations:
estudio delle » estudio del, studio della, estudio desde
de literatura » de litterature, la literatura, y literatura
studio delle » studio della, estudio del
filosofia de » filosofia del
estudios de » estudio de
bist das » ist das, list das, geist 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 ((studio delle) OR (((estudio delle) OR (estudios de)))) filosofia de literatura.
• Adding a wildcard symbol may retrieve word variants: bist das ((studio delle) or (((estudio delle) or (estudios de)))) filosofia de literatura*.