Perhaps you should try some spelling variations:
"cooperacion la solidaritat." » "cooperacion las solidaritat.", "cooperacion a solidaritat.", "cooperacion en solidaritat.", "cooperacion la solidaridad."
"cooperacion y solidaritat." » "cooperacion y solidaridad.", "cooperacion y solidaria.", "cooperacion y solidarias."
"cooperacion i solidaritat." » "cooperacio i solidaritat.", "cooperacion a solidaritat.", "cooperacion e solidaritat.", "cooperacion y solidaridad."

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