Perhaps you should try some spelling variations:
"international poverty economy series" » "national poverty economy series", "international poverty economic series", "international poverty economies series", "international property economic series", "international poverty economics series"
"international war economy series" » "international water economy series", "international waters economy series", "international women economy series", "international war economics series", "international war economic series", "international farm economy series", "international war economies series"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (("international poverty economy series") or ("international war economy series"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("international poverty economy series") OR ("international war economy series")).
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