Perhaps you should try some spelling variations:
"international policy economy series" » "international poverty economy series", "international prices economy series", "national policy economy series", "international policy economic series", "international polish economy series", "international politics economy series", "international policy economics series"
"international price economy series" » "international prices economy series", "international center economy series", "international price economics series", "international rich economy series", "international service economy series", "international private economy 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 economy series") or ("international price economy series"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("international policy economy series") OR ("international price economy series")).
• Removing quotes may allow a broader search: (( international policy economy series ) or ( international price economy series )).
• Adding a wildcard symbol may retrieve word variants: (("international policy economy series") or ("international price economy series"))*.