Perhaps you should try some spelling variations:
ciencas sociales » ciencias sociales, ciencia social
ciencias social » ciencia social, ciencias sociales, ciencies socials
la ciencias » las ciencias, la ciencia, de ciencias
lectura la » lectura a, lectura una, lectura y
de ciencas » de ciencias, de cuencas, de ciencia

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (( lectura la ciencias social ; ) or ( lectura de ciencas sociales ; ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( lectura la ciencias social ; ) OR ( lectura de ciencas sociales ; )).
• Adding a wildcard symbol may retrieve word variants: (( lectura la ciencias social ; ) or ( lectura de ciencas sociales ; ))*.