Perhaps you should try some spelling variations:
investment treaties » investment strategies, investment activities, investment incentives
investments period » investment period, investment periods, investments peru
fixed investments » fixed investment, fund investments, direct investments
firms investment » firm investment, firm investments, reforms investment
kept fixed » net fixed

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( h. kept fixed investments period ) or ( h. best firms investment treaties ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( h. kept fixed investments period ) OR ( h. best firms investment treaties )).
• Adding a wildcard symbol may retrieve word variants: (( h. kept fixed investments period ) or ( h. best firms investment treaties ))*.