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