Perhaps you should try some spelling variations:
investor perspectives » investor perspective, investor protections, investor perceptions
development projects » development policy
promote development » product development, program development, project development
private investor » private investors, private investment, private sector
cost private » das private

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( _ promote development projects declines ) or ( cost private investor perspectives series ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( _ promote development projects declines ) OR ( cost private investor perspectives series )).
• Adding a wildcard symbol may retrieve word variants: (( _ promote development projects declines ) or ( cost private investor perspectives series ))*.