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 ecological services", "international political economic surveys", "international political economic studies"
international social » international journal, international seminar, international commercial
"International social clinical services" » "International social medical services", "International social ecological services"

Try widening your search to All Fields.

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