Perhaps you should try some spelling variations:
development activities » investment activities, development practitioners
trade development » software development
policy declines » price declines, policy deliver, policy guidelines
can trade » chain trade, can't trade, clean trade
cfa human » a human

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( can trade development activities across ) or ( cfa human development policy declines ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( can trade development activities across ) OR ( cfa human development policy declines )).
• Adding a wildcard symbol may retrieve word variants: (( can trade development activities across ) or ( cfa human development policy declines ))*.