Perhaps you should try some spelling variations:
"international poverty economies series" » "national poverty economies series", "international poverty economic series", "international property economic series", "international diverse economies series", "international poverty economics series", "international poverty economy series"
"international border economic lessons" » "international borders economic lessons", "international order economic lessons", "international bidders economic lessons", "international border economies lessons", "international border economy lessons", "international border economic losses", "international broader economic lessons", "international worker economic lessons", "international bolster economic lessons"

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