Perhaps you should try some spelling variations:
better investment » sector investment, sector investments, term investment
investment demand » investor demand
rates investment » notes investment, rules investment, water investment
investment cost » investment costs
salt rates » salt water, past rates, vat rates

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 rates investment cost ) OR ( h. get better investment demand ))~.
• Adding a wildcard symbol may retrieve word variants: (( h. salt rates investment cost ) or ( h. get better investment demand ))*.