Perhaps you should try some spelling variations:
rates investment » notes investment, rules investment, water investment
bond investment » bond investments, fund investment, good investment
road investment » fixed investment
investment fund » investment funds, investment bank, investment flows
melt rates » heat rates, melt water

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 ((bond investment) OR (road investment)) series ) or ( h. melt rates investment fund ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( h. rent ((bond investment) OR (road investment)) series ) OR ( h. melt rates investment fund ))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( h. rent ((bond investment) OR (road investment)) series ) or ( h. melt rates investment fund ))*".