Perhaps you should try some spelling variations:
investment treaties » investment strategies, investment activities, investment incentives
investment demand » investor demand
after investment » water investment, battery investment, water investments
based investment » fixed investment, best investment, bond investment
current after » current water, current armed, current patterns

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