Perhaps you should try some spelling variations:
investment period » investment series, investment policy, adjustment period
rates investment » notes investment, rules investment, water investment
bond investment » bond investments, road investment, fund investment
melt rates » heat rates, melt water
term bond » term bonds

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "(( h. melt rates investment period ) OR ( h. term bond investment costs ))~".
• Adding a wildcard symbol may retrieve word variants: (( h. melt rates investment period ) OR ( h. term bond investment costs ))*.