Perhaps you should try some spelling variations:
eestudio del » estudio de, studio del, estadio del
estudios del » estudio de, estudos de
y literatura » la literatura
estudio del » estudio de, studio della
estudios de » estudio de
filosofia y » filosofia e, filosofia _, filosofia 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 (((((eestudio del) OR (estudios del))) OR (estudios de)))) filosofia y literatura.
• The words AND, OR and NOT may confuse the search; try adding quotes: "bist das ((estudio del) or (((((eestudio del) OR (estudios del))) or (estudios de)))) filosofia y literatura".
• Adding a wildcard symbol may retrieve word variants: bist das ((estudio del) or (((((eestudio del) OR (estudios del))) or (estudios de)))) filosofia y literatura*.