Perhaps you should try some spelling variations:
"international policy economic surveys" » "international poverty economic surveys", "international prices economic surveys", "national policy economic surveys", "international policy economic studies", "international policy economic systems"
"international city economies series" » "international equity economies series", "international parity economies series", "international civil economies series", "international city economics series", "international city economic series", "international city economy series", "international country economies 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 surveys") or ("international city economies series"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("international policy economic surveys") OR ("international city economies series")).
• Removing quotes may allow a broader search: (( international policy economic surveys ) or ( international city economies series )).
• Adding a wildcard symbol may retrieve word variants: (("international policy economic surveys") or ("international city economies series"))*.