Perhaps you should try some spelling variations:
"sesion individual del ciencias social." » "bien individual del ciencias social.", "etico individual del ciencias social.", "ser individual del ciencias social.", "sesion individual del ciencia social.", "sesion individual del ciencias sociales.", "sesion individual del ciencias sociais.", "sesion individual de ciencias social.", "sesion individual en ciencias social.", "sesion individual y ciencias social.", "sesion individual e ciencias social."
"serie individuas de ciencies socials." » "serie individuo de ciencies socials.", "ser individual de ciencies socials.", "aerea individual de ciencies socials.", "serie individuas de ciencias sociales.", "serie individuas de ciencia social.", "serie individuas de ciencas sociales.", "serie individual de ciencies socials.", "serie individuales de ciencies socials.", "serie individual e ciencies socials.", "serie individuas de ciencias socials.", "serie individuas les ciencies socials.", "serie individuas de ciencia socials."

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (("sesion individual del ciencias social.") or ("serie individuas de ciencies socials."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("sesion individual del ciencias social.") OR ("serie individuas de ciencies socials.")).
• Removing quotes may allow a broader search: (( sesion individual del ciencias social. ) or ( serie individuas de ciencies socials. )).
• Adding a wildcard symbol may retrieve word variants: (("sesion individual del ciencias social.") or ("serie individuas de ciencies socials."))*.