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"
"international art economic surveys" » "international alert economic surveys", "international smart economic surveys", "internationaler art economic surveys", "international art economic studies", "international art economic systems", "international arts economic surveys", "international east economic surveys", "international about economic surveys"

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

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