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 poverty economics series" » "national poverty economics series", "international poverty economic series", "international poverty economies series", "international property economic 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 poverty economics series") or ("international american economy series"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("international poverty economics series") OR ("international american economy series")).
• Removing quotes may allow a broader search: (( international poverty economics series ) or ( international american economy series )).
• Adding a wildcard symbol may retrieve word variants: (("international poverty economics series") or ("international american economy series"))*.