Perhaps you should try some spelling variations:
investment treaties » investment strategies, investment activities, investment incentives
water investment » water investments, rates investment, greater investment
rural investment » social investment, global investment
investment flows » investment funds
salt water » saline water
kent rural » kenya rural

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. salt water investment treaties ) OR ( h. kent rural investment flows ))~.
• Adding a wildcard symbol may retrieve word variants: (( h. salt water investment treaties ) or ( h. kent rural investment flows ))*.