Perhaps you should try some spelling variations:
"ciencias sociais investigacion accion." » "ciencias social investigacion accion.", "ciencias sociales nvestigacion accion.", "ciencias sociales investigaciones accion.", "ciencias sociais investigacion en.", "ciencies socials investigacion accion.", "ciencia social investigacion accion.", "ciencas sociales investigacion accion."
"ciencias sociales investigacion accion." » "ciencias sociales investigacion en.", "ciencias social investigacion accion."

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (("ciencias sociais investigacion accion.") or ("ciencias sociales investigacion accion."))~.
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• Adding a wildcard symbol may retrieve word variants: (("ciencias sociais investigacion accion.") or ("ciencias sociales investigacion accion."))*.