Perhaps you should try some spelling variations:
rates investment » notes investment, rules investment, water investment
investment does » investment data, investment assets, investment across
testing fixed » testing field, trading fixed, voting fixed
test fixed » test field, net fixed
kent rates » heat rates, ascent rates, events 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. ((test fixed) OR (testing fixed)) investment does ) or ( h. kent rates investment bank ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( h. ((test fixed) OR (testing fixed)) investment does ) OR ( h. kent rates investment bank ))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( h. ((test fixed) OR (testing fixed)) investment does ) or ( h. kent rates investment bank ))*".