Perhaps you should try some spelling variations:
"international poverty economic studies" » "national poverty economic studies", "international best economic studies", "international policy economic studies", "international energy economic studies", "international poverty economic status", "international poverty economic surveys"
"international policy economy series" » "international prices economy series", "national policy economy series", "international aid economy series", "international policy economic series", "international policy autonomy series", "international poppy economy series"

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