Perhaps you should try some spelling variations:
"international policy economic series" » "international poverty economic series", "international prices economic series", "national policy economic series", "international policy economics series", "international policy economic services", "international policy economy series"
"international policy autonomy series" » "international poverty autonomy series", "international prices autonomy series", "national policy autonomy series", "international political autonomy series", "international policy astronomy series", "international policy economy series", "international policy autonomy states"

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