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