Perhaps you should try some spelling variations:
investment choices » investment costs, investment process
investment series » investment services, investment barriers, investment treaties
based investment » fixed investment, best investment, bond investment
rent based » agent based, report based, forest based
rank based » bank based, risk based, land based
test based » forest based, result based

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 based) OR (rank based)) investment series ) or ( h. test based investment choices ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( h. ((rent based) OR (rank based)) investment series ) OR ( h. test based investment choices )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( h. ((rent based) OR (rank based)) investment series ) or ( h. test based investment choices ))".
• Adding a wildcard symbol may retrieve word variants: (( h. ((rent based) OR (rank based)) investment series ) or ( h. test based investment choices ))*.