Perhaps you should try some spelling variations:
international policy » international poverty, international prices, national policy
"International political economic series" » "International political economy series", "International ecological economics series", "International political economics series", "International political economic services"
"International policy economic series" » "International policy economics series", "International policy economic services", "International policy economy series"

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 series") OR ("International policy economic series"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"International political economic series\") OR (\"International policy economic series\"))".
• Removing quotes may allow a broader search: (( International political economic series ) OR ( International policy economic series )).
• Adding a wildcard symbol may retrieve word variants: (("International political economic series") OR ("International policy economic series"))*.