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"
"national politics autonomy series" » "national policies autonomy series", "national logistics autonomy series", "national policy autonomy series", "national political autonomy series", "national politics economy series", "national politics astronomy series", "national politics autonomy states", "national politics autonomy survey"

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