Perhaps you should try some spelling variations:
international closed » international case, international code, international cases
international open » international hope, international order, international scope
closed economies » closed economy, planned economies
economies face » economiques face, economies facts, economies have
economy ten » economy tell, economy tax, economy three

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( international open economy ten ) or ( international closed economies face ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( international open economy ten ) OR ( international closed economies face )).
• Adding a wildcard symbol may retrieve word variants: (( international open economy ten ) or ( international closed economies face ))*.