Perhaps you should try some spelling variations:
"international political economic services" » "international policy economic services", "international political economy services", "international ecological economics services", "international political economics series", "international political economic studies", "international political economic surveys"
international social » international society, international sourcing, international seminar
"International social ecological services" » "International social hydrological services", "International social clinical services", "International social meteorological services"

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