Perhaps you should try some spelling variations:
investment demand » investment bank, investment fund, investor demand
based investment » fixed investment, best investment, bond investment
rates investment » notes investment, water investment, related investment
heat rates » heat rate, death rates, heat waves
test based » forest based, result based

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (( h. heat rates investment climate ) or ( h. test based investment demand ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( h. heat rates investment climate ) OR ( h. test based investment demand )).
• Adding a wildcard symbol may retrieve word variants: (( h. heat rates investment climate ) or ( h. test based investment demand ))*.