Perhaps you should try some spelling variations:
"international poverty economic series" » "national poverty economic series", "international property economic series", "international forestry economic series", "international policy economic series", "international poverty economics series", "international poverty economic services", "international poverty economy series"
"international media ecology series" » "international credit ecology series", "international mail ecology series", "international mediation ecology series", "international media economy series", "international media biology series", "international media technology 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 poverty economic series") or ("international media ecology series"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("international poverty economic series") OR ("international media ecology series")).
• Removing quotes may allow a broader search: (( international poverty economic series ) or ( international media ecology series )).
• Adding a wildcard symbol may retrieve word variants: (("international poverty economic series") or ("international media ecology series"))*.