Perhaps you should try some spelling variations:
"international security countries lessons" » "international community countries lessons", "national security countries lessons", "international studies countries lessons", "international security boundaries lessons", "international security controls lessons", "international security council lessons"
"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"

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 security countries lessons"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("international poverty economies series") OR ("international security countries lessons")).
• Removing quotes may allow a broader search: (( international poverty economies series ) or ( international security countries lessons )).
• Adding a wildcard symbol may retrieve word variants: (("international poverty economies series") or ("international security countries lessons"))*.