Perhaps you should try some spelling variations:
investment treaties » investment strategies, investment activities, investment incentives
after investment » water investment, battery investment, water investments
ascent rates » accident rates, payment rates, ascent after
kent rates » heat rates, events rates
melt after » belts after, melt water, debt after

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. ((kent rates) OR (ascent rates)) investment treaties ) OR ( h. melt after investment bank ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( h. ((kent rates) OR (ascent rates)) investment treaties ) or ( h. melt after investment bank ))~".
• Adding a wildcard symbol may retrieve word variants: (( h. ((kent rates) OR (ascent rates)) investment treaties ) or ( h. melt after investment bank ))*.