Perhaps you should try some spelling variations:
development projects » development policy
based development » basin development, land development, rapid development
private investor » private investors, private investment, private sector
investor demand » investment demand
kenyan private » kenya's private
kent based » agent based, test based

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: (( h. kent based development projects ) OR ( h. kenyan private investor demand ))~.
• Adding a wildcard symbol may retrieve word variants: (( h. kent based development projects ) or ( h. kenyan private investor demand ))*.