Perhaps you should try some spelling variations:
"international american economy series" » "international african economy series", "international africa economy series", "international empirical economy series", "international american economic series", "international african economic series", "international agrarian economy series", "international american economics series"
"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"

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

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