Perhaps you should try some spelling variations:
"coleccion social clasico." » "coleccion sociales clasico.", "eleccion social clasico.", "coleccion sociedad clasico.", "coleccion social basico.", "coleccion social classes.", "coleccion social class."
"coleccion manuales class." » "coleccion manuales ars."
"accion social basica." » "educacion social basica.", "accion social basico.", "accion social asia.", "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 social clasico.") or ("coleccion manuales class."))) or ("accion social basica."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("coleccion social clasico.") OR ("coleccion manuales class."))) OR ("accion social basica.")).
• Removing quotes may allow a broader search: (((( coleccion social clasico. ) or ( coleccion manuales class. ))) or ( accion social basica. )).
• Adding a wildcard symbol may retrieve word variants: (((("coleccion social clasico.") or ("coleccion manuales class."))) or ("accion social basica."))*.