Perhaps you should try some spelling variations:
"international politics economics series" » "international relations economics series", "international policy economic series", "international politics economy series"
"international political economies series" » "international political economy series", "international political ideologies series", "international political economic series", "international political economies verghese"
"international political economic theories" » "international political economy theories", "international political economic theory", "international political economics theory", "international political economic ties"

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

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