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

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 economic surveys") or ("international political economic services"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("international political economic surveys") OR ("international political economic services"))*.
• Removing quotes may allow a broader search: (( international political economic surveys ) or ( international political economic services ))*.