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

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