Perhaps you should try some spelling variations:
investments period » investment period, investment periods, investment series
water investments » term investments, sector investments
case payment » cash payments, care payments, lease payment
cash payment » cash payments
kent water » kenya water, melt water

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. kent water investments period ) OR ( h. kept ((case payment) OR (cash payment)) service ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( h. kent water investments period ) or ( h. kept ((case payment) OR (cash payment)) service ))~".
• Adding a wildcard symbol may retrieve word variants: (( h. kent water investments period ) or ( h. kept ((case payment) OR (cash payment)) service ))*.