Perhaps you should try some spelling variations:
"international closed economy fierce" » "international case economy fierce", "international code economy fierce", "international cases economy fierce", "international closed economy finance", "international closed economy field", "international closed economy figure"
"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.

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