Perhaps you should try some spelling variations:
investment demand » investor demand
rates investment » notes investment, rules investment, water investment
investment rates » investment rate
based investment » fixed investment, best investment, bond investment
current rates » current rate, current ratio, current water
kent based » agent based, event based, text based

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