Perhaps you should try some spelling variations:
demands during » remarks during
water demands » water demand
zhang fang » zhang fan, zhang zhang, zhang yan
li zhang » _ zhang
fang run » fang yuan, long run, bank run
bonn a » bonn am, bonn _, bon a
kon a » von a, won a, bon a

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: li zhang fang run water demands during ((kon a) OR (bonn a)) ;~.
• Adding a wildcard symbol may retrieve word variants: li zhang fang run water demands during ((kon a) or (bonn a)) ;*.