Perhaps you should try some spelling variations:
investment period » investment series, investment policy, adjustment period
water investment » water investments, after investment, rates investment
investment flows » investment funds
debt investment » direct investment, direct investments, forest investment
gets debt » its debt, gets left

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( h. (kent or kunt) water investment flows ) or ( h. gets debt investment period ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( h. (kent OR kunt) water investment flows ) OR ( h. gets debt investment period )).
• Adding a wildcard symbol may retrieve word variants: (( h. (kent or kunt) water investment flows ) or ( h. gets debt investment period ))*.