Perhaps you should try some spelling variations:
international based » international case, international bank, international best
international oil » international aid, international air, international bond
economies twenty » economies theory, economies ten, economies country
economy fierce » economy evidence
oil economies » local economies, world economies, open economies
based economy » closed economy, mixed economy, blue economy

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

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