Perhaps you should try some spelling variations:
ciencies socials » ciencias sociales, ciencia social, ciencas sociales
ciencias social » ciencia social, ciencias sociales, ciencias sociais
lectura una » lectura en, lectura para
a ciencias » la ciencias, y ciencias, e ciencias
lectura la » lectura de, lectura y, lectura en
lectura a » lectura y, lectura de, lectura en

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( lectura a ciencias social ; ) or ( ((lectura la) OR (lectura una)) ciencies socials ; ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( lectura a ciencias social ; ) OR ( ((lectura la) OR (lectura una)) ciencies socials ; )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( lectura a ciencias social ; ) or ( ((lectura la) OR (lectura una)) ciencies socials ; ))".
• Adding a wildcard symbol may retrieve word variants: (( lectura a ciencias social ; ) or ( ((lectura la) OR (lectura una)) ciencies socials ; ))*.