Perhaps you should try some spelling variations:
"international brief economic studies" » "international series economic studies", "international relief economic studies", "international border economic studies", "international brief economic status", "international tariff economic studies", "international britain economic studies", "international british economic studies"
"international green economy status" » "international grain economy status", "international agreement economy status", "international greentech economy status", "international green economic status", "international green economy state", "international green economies status", "international open economy status", "international urban economy status"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("international brief economic studies") or ("international green economy status"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("international brief economic studies") OR ("international green economy status"))*.
• Removing quotes may allow a broader search: (( international brief economic studies ) or ( international green economy status ))*.