Perhaps you should try some spelling variations:
"a trade development activities series" » "a trade investment activities series", "a trade development practitioners series", "a software development activities series", "a trade development activities overview", "_ trade development activities series"
"cfaa asian development price declines" » "cfaa human development price declines", "cfaa urban development price declines", "cfaa clean development price declines", "cfaa asian development police declines", "cfaa asian development practice declines", "cfaa asian development process declines", "cfaa asian development price decline", "cfaa asian development price declined"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

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