Perhaps you should try some spelling variations:
investment demands » investment demand, investment funds, investment trends
rates investment » notes investment, rules investment, water investment
investment rates » investment rate
based investment » fixed investment, best investment, bond investment
event based » agent based
rent rates » heat rates, rent taxes, current rates

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( h. rent rates investment rates ) or ( h. event based investment demands ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( h. rent rates investment rates ) OR ( h. event based investment demands ))*.