Perhaps you should try some spelling variations:
"international brief economic studies" » "international series economic studies", "international relief economic studies", "international border economic studies", "international tariff economic studies", "international britain economic studies", "international british economic studies"
"international green economic status" » "international grain economic status", "international agreement economic status", "international greentech economic status", "international green economic sectors", "international green socioeconomic status", "international green economy status", "international urban economic status", "international asean economic 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 economic status"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("international brief economic studies") OR ("international green economic status"))*.
• Removing quotes may allow a broader search: (( international brief economic studies ) or ( international green economic status ))*.