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

You may be able to get more results by adjusting your search query.

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