Perhaps you should try some spelling variations:
development perspectives » development objectives, development projects, development priorities
investor detection » investor protection, investor attention, investor protections
river development » driven development, water development, power development
detection series » detection systems, detection system
estate investor » estate investment, private investor
cfa » cfaa

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (( a river development perspectives series ) OR ( cfa estate investor detection series ))~.
• Adding a wildcard symbol may retrieve word variants: (( a river development perspectives series ) or ( cfa estate investor detection series ))*.