Perhaps you should try some spelling variations:
forest investment » foreign investment, direct investment, foreign investments
investment demand » investor demand
investment does » investment data, investment assets, investment across
debt investment » direct investment, direct investments
kept forest » meet forest, empty forest

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. kept forest investment does ) OR ( h. net debt investment demand ))~.
• Adding a wildcard symbol may retrieve word variants: (( h. kept forest investment does ) or ( h. net debt investment demand ))*.