Perhaps you should try some spelling variations:
"international poverty economy series" » "national poverty economy series", "international poverty economies series", "international property economic series", "international poverty economics series"
"international poverty economic surveys" » "national poverty economic surveys", "international property economic surveys", "international forestry economic surveys", "international policy economic surveys", "international poverty economic studies", "international poverty economic systems"

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