Perhaps you should try some spelling variations:
"south african cooperation." » "south area cooperation.", "south asean cooperation.", "south arab cooperation.", "south africa's cooperation.", "north africa cooperation."
"south america cooperation." » "south american corporation.", "south area cooperation.", "south american colonization.", "north america cooperation."
"south africa cooperation." » "south area cooperation.", "south china cooperation.", "south arab cooperation."
"south arica cooperation." » "south area cooperation.", "south china cooperation.", "south arab cooperation.", "south amrica cooperation.", "youth africa cooperation.", "south africa's cooperation."
"south asian cooperation." » "south area cooperation."
"south asia cooperation." » "south asean cooperation.", "south area cooperation.", "south china cooperation."

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("south asia cooperation.") or ((((("south arica cooperation.") or ("south asian cooperation."))) or ((((("south african cooperation.") OR ("south america cooperation."))) or ("south africa cooperation."))))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("south asia cooperation.") OR ((((("south arica cooperation.") OR ("south asian cooperation."))) OR ((((("south african cooperation.") OR ("south america cooperation."))) OR ("south africa cooperation.")))))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"south asia cooperation.\") or (((((\"south arica cooperation.\") or (\"south asian cooperation.\"))) or (((((\"south african cooperation.\") OR (\"south america cooperation.\"))) or (\"south africa cooperation.\"))))))".
• Removing quotes may allow a broader search: (( south asia cooperation. ) or ((((( south arica cooperation. ) or ( south asian cooperation. ))) or ((((( south african cooperation. ) OR ( south america cooperation. ))) or ( south africa cooperation. )))))).
• Adding a wildcard symbol may retrieve word variants: (("south asia cooperation.") or ((((("south arica cooperation.") or ("south asian cooperation."))) or ((((("south african cooperation.") OR ("south america cooperation."))) or ("south africa cooperation."))))))*.