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

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 economic series") OR ("international political economics series"))) OR ("international political economy theories"))) OR ("international political economies series"))~.
• Removing quotes may allow a broader search: (((((( international politics economic series ) or ( international political economics series ))) or ( international political economy theories ))) or ( international political economies series ))~.
• Adding a wildcard symbol may retrieve word variants: (((((("international politics economic series") or ("international political economics series"))) or ("international political economy theories"))) or ("international political economies series"))*.