Perhaps you should try some spelling variations:
"international based economy fierce" » "international case economy fierce", "international bank economy fierce", "international best economy fierce", "international based economy evidence", "international closed economy fierce", "international mixed economy fierce", "international blue economy fierce"
"international open economies twenty" » "international arena economies twenty", "international oil economies twenty", "international openness 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 based economy fierce"))~.
• Removing quotes may allow a broader search: (( international open economies twenty ) or ( international based economy fierce ))~.
• Adding a wildcard symbol may retrieve word variants: (("international open economies twenty") or ("international based economy fierce"))*.