Perhaps you should try some spelling variations:
government services » government securities
rates investment » notes investment, water investment, related investment
investment costs » investment funds, investment flows, investment banks
e government » _ government
heat rates » heat rate, death rates, heat waves
rent e » rent _

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 costs ) or ( h. rent e government services ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( h. heat rates investment costs ) OR ( h. rent e government services )).
• Adding a wildcard symbol may retrieve word variants: (( h. heat rates investment costs ) or ( h. rent e government services ))*.