Perhaps you should try some spelling variations:
"coleccion las ciencias social." » "coleccion las ciencia social.", "coleccion las ciencias sociales.", "coleccion las ciencies socials."
"coleccion las science OR years science social." » "coleccion las science OR earth science social.", "coleccion las science OR aware science social.", "coleccion a science OR years science social.", "coleccion clil science OR years science social."

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 las ciencias social.") or ("coleccion ((las science) OR (years science)) social."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("coleccion las ciencias social.") OR ("coleccion ((las science) OR (years science)) social.")).
• Removing quotes may allow a broader search: (( coleccion las ciencias social. ) or ( coleccion ((las science) OR (years science)) social. )).
• Adding a wildcard symbol may retrieve word variants: (("coleccion las ciencias social.") or ("coleccion ((las science) OR (years science)) social."))*.