Perhaps you should try some spelling variations:
"cooperacion las solidaritat." » "cooperacion la solidaridad.", "cooperacion i solidaritat.", "cooperacion las solidaridades.", "cooperacion al solidaritat.", "cooperacion para solidaritat.", "cooperacion en solidaritat.", "cooperacion as solidaritat.", "cooperacion ens solidaritat.", "cooperacion als solidaritat."
"cooperacion la solidaritat." » "cooperacion a solidaritat.", "cooperacion en solidaritat.", "cooperacion al solidaritat.", "cooperacion la solidaridad.", "cooperacion i solidaritat."
"cooperacion y solidaritat." » "cooperacion i solidaritat.", "cooperacion y solidaridad.", "cooperacion y solidaria."

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: (("cooperacion y solidaritat.") or ((("cooperacion la solidaritat.") OR ("cooperacion las solidaritat."))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("cooperacion y solidaritat.") OR ((("cooperacion la solidaritat.") OR ("cooperacion las solidaritat.")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"cooperacion y solidaritat.\") or (((\"cooperacion la solidaritat.\") OR (\"cooperacion las solidaritat.\"))))".
• Removing quotes may allow a broader search: (( cooperacion y solidaritat. ) or ((( cooperacion la solidaritat. ) OR ( cooperacion las solidaritat. )))).
• Adding a wildcard symbol may retrieve word variants: (("cooperacion y solidaritat.") or ((("cooperacion la solidaritat.") OR ("cooperacion las solidaritat."))))*.