Perhaps you should try some spelling variations:
rates investment » notes investment, rules investment, water investment
investment ties » investment series, investment trends, investment trust
des investment » does investment, debt investment, best investment
rent rates » heat rates, rent taxes, current rates
agent des » agent de, agenda des, agent du

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 rates investment barriers ) OR ( h. agent des investment ties ))~.
• Adding a wildcard symbol may retrieve word variants: (( h. rent rates investment barriers ) or ( h. agent des investment ties ))*.