Perhaps you should try some spelling variations:
forest investment » foreign investment, direct investment, foreign investments
investment demand » investor demand
based investment » fixed investment, best investment, bond investment
investment flows » investment funds
kept forest » meet forest, empty forest
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. kent based investment flows ) OR ( h. kept forest investment demand ))~.
• Adding a wildcard symbol may retrieve word variants: (( h. kent based investment flows ) or ( h. kept forest investment demand ))*.