Perhaps you should try some spelling variations:
"eleccion sociales class." » "coleccion sociales class.", "eleccion social class.", "seleccion parciales class.", "eleccion sociales clases.", "eleccion sociales las."
"coleccion sociedad basica." » "coleccion sociedad laica.", "coleccion sociedad basada.", "coleccion sociedad plastica."
"accion social basica." » "educacion social basica.", "accion social basico.", "accion social asia.", "accion social clasico."

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 ("eleccion sociales class."))) or ("accion social basica."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("coleccion sociedad basica.") OR ("eleccion sociales class."))) OR ("accion social basica.")).
• Removing quotes may allow a broader search: (((( coleccion sociedad basica. ) or ( eleccion sociales class. ))) or ( accion social basica. )).
• Adding a wildcard symbol may retrieve word variants: (((("coleccion sociedad basica.") or ("eleccion sociales class."))) or ("accion social basica."))*.