Perhaps you should try some spelling variations:
"international political economy series" » "international policy economy series", "international political economics series"
"International political economic surveys" » "International policy economic surveys", "International ecological economics surveys", "International political economic studies", "International political economic systems"

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

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