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