Perhaps you should try some spelling variations:
"a trade development policies series" » "a trade development projects series", "a software development policies series", "a trade development politics series", "a trade development policy series"
"cfaa asian development policy beliefs" » "cfaa human development policy beliefs", "cfaa urban development policy beliefs", "cfaa clean development policy beliefs", "cfaa asian development policy briefs", "cfaa asian development policy brief", "cfaa asian development policy belarus", "can asian development policy beliefs"

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• Performing a fuzzy search may retrieve terms with similar spellings: (("a trade development policies series") or ("cfaa asian development policy beliefs"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("a trade development policies series") OR ("cfaa asian development policy beliefs")).
• Removing quotes may allow a broader search: (( a trade development policies series ) or ( cfaa asian development policy beliefs )).
• Adding a wildcard symbol may retrieve word variants: (("a trade development policies series") or ("cfaa asian development policy beliefs"))*.