Perhaps you should try some spelling variations:
"international poverty economics series" » "national poverty economics series", "international poverty economic series", "international poverty economies series", "international property economic series"
"international medical economy series" » "international media economy series", "international american economy series", "international chemical economy series", "international medieval economy series", "international medical economics series", "international medical autonomy 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 medical economy series"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("international poverty economics series") OR ("international medical economy series"))*.
• Removing quotes may allow a broader search: (( international poverty economics series ) or ( international medical economy series ))*.