Perhaps you should try some spelling variations:
based investment » fixed investment, best investment, bond investment
investment flows » investment funds
road investment » fixed investment
investment bank » investment funds
rent based » agent based, rank based, test based

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 based investment flows ) OR ( h. (ring OR bring) road investment bank ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( h. rent based investment flows ) or ( h. (ring OR bring) road investment bank ))~".
• Adding a wildcard symbol may retrieve word variants: (( h. rent based investment flows ) or ( h. (ring OR bring) road investment bank ))*.