Perhaps you should try some spelling variations:
investments treaties » investment treaties, investment treaty, investments great
water investments » term investments, sector investments
investment demand » investor demand
based investment » fixed investment, best investment, bond investment
current water » current rate, current rates, current state

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. current water investments treaties ) OR ( h. agent based investment demand ))~.
• Adding a wildcard symbol may retrieve word variants: (( h. current water investments treaties ) or ( h. agent based investment demand ))*.