Perhaps you should try some spelling variations:
"international policy economy series" » "international poverty economy series", "international prices economy series", "national policy economy series", "international policy economic series", "international polish economy series", "international politics economy series", "international policy economics series"
"international fast economic surveys" » "international east economic surveys", "international fair economic surveys", "international astm economic surveys", "international fast economic studies", "international fast economic systems", "international art economic surveys", "international trust economic surveys"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("international fast economic surveys") or ("international policy economy series"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("international fast economic surveys") OR ("international policy economy series")).
• Removing quotes may allow a broader search: (( international fast economic surveys ) or ( international policy economy series )).
• Adding a wildcard symbol may retrieve word variants: (("international fast economic surveys") or ("international policy economy series"))*.