Perhaps you should try some spelling variations:
"international closed economies factor" » "international case economies factor", "international code economies factor", "international cases economies factor", "international closed economy factor", "international planned economies factor", "international closed economic factors"
"international open economies twenty" » "international hope economies twenty", "international order economies twenty", "international scope economies twenty", "international open economies theory", "international open economies ten", "international open economies country", "international open economy twenty"

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 economies twenty") or ("international closed economies factor"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("international open economies twenty") OR ("international closed economies factor")).
• Removing quotes may allow a broader search: (( international open economies twenty ) or ( international closed economies factor )).
• Adding a wildcard symbol may retrieve word variants: (("international open economies twenty") or ("international closed economies factor"))*.