Perhaps you should try some spelling variations:
"international political economic theory" » "international policy economic theory", "international political economy theory", "international ecological economics theory"
"international prices autonomy series" » "international driven autonomy series", "international provider autonomy series", "international private autonomy series", "international prices astronomy series", "international prices economy series", "international prices 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 economic theory") or ("international prices autonomy series"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("international political economic theory") OR ("international prices autonomy series"))*.
• Removing quotes may allow a broader search: (( international political economic theory ) or ( international prices autonomy series ))*.