Perhaps you should try some spelling variations:
investment treaties » investment strategies, investment activities, investment incentives
adjustment policy » adjustment policies, investment policy
water adjustment » wage adjustment, rate adjustment, better adjustment
salt water » saline water
rent water » ment water, peat water, want water

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 adjustment policy ) OR ( h. ((rent water) OR (melt water)) investment treaties ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( h. salt water adjustment policy ) or ( h. ((rent water) OR (melt water)) investment treaties ))~".
• Adding a wildcard symbol may retrieve word variants: (( h. salt water adjustment policy ) or ( h. ((rent water) OR (melt water)) investment treaties ))*.