Perhaps you should try some spelling variations:
investment period » investment series, investment policy, adjustment period
fixed investment » direct investment
investment rates » investment rate
bond investment » bond investments, road investment, fund investment
rent fixed » net fixed
rank bond » bank bond, bank bonds, junk bond

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (( h. rent fixed investment rates ) OR ( h. rank bond investment period ))~.
• Adding a wildcard symbol may retrieve word variants: (( h. rent fixed investment rates ) or ( h. rank bond investment period ))*.