Perhaps you should try some spelling variations:
"serie individuo de ciencies socials." » "serie individuo de ciencias sociales.", "serie individuo de ciencia social.", "serie individuo de ciencas sociales.", "serie individuo del ciencies socials.", "serie individual de ciencies socials.", "serie individuas de ciencies socials.", "serie individuo de ciencias socials.", "serie individuo les ciencies socials.", "serie individuo de ciencia socials."
"serie individuo a science social." » "serie individuo a science sociology.", "serie individuo y science social.", "serie individuo o science social.", "serie individuo en science social.", "serie individuo _ science social.", "serie individuo _ sciences social.", "serie individuo el science social."

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (("serie individuo de ciencies socials.") or ("serie individuo a science social."))~.
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• Adding a wildcard symbol may retrieve word variants: (("serie individuo de ciencies socials.") or ("serie individuo a science social."))*.