Perhaps you should try some spelling variations:
investment treaties » investment strategies, investment activities, investment incentives
greater investment » great investment, green investment, related investment
investment demand » investor demand
play greater » always greater, imply greater, a greater
deep sector » del sector

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( h. deep sector investment demand ) or ( h. play greater investment treaties ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( h. deep sector investment demand ) OR ( h. play greater investment treaties )).
• Adding a wildcard symbol may retrieve word variants: (( h. deep sector investment demand ) or ( h. play greater investment treaties ))*.