Perhaps you should try some spelling variations:
"educacion social basico." » "education social basico.", "educacion especial basico.", "educacion vocacional basico.", "educacion social clasico.", "educacion social mexico.", "educacion social brasil."
"coleccion sociedad basica." » "coleccion sociedad laica.", "coleccion sociedad basada.", "coleccion sociedad plastica."
"accion social basica." » "accion social asia.", "accion social clasico.", "accion social hacia."

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("coleccion sociedad basica.") or ("educacion social basico."))) or ("accion social basica."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("coleccion sociedad basica.") OR ("educacion social basico."))) OR ("accion social basica.")).
• Removing quotes may allow a broader search: (((( coleccion sociedad basica. ) or ( educacion social basico. ))) or ( accion social basica. )).
• Adding a wildcard symbol may retrieve word variants: (((("coleccion sociedad basica.") or ("educacion social basico."))) or ("accion social basica."))*.