Perhaps you should try some spelling variations:
cost during » boost during, crust during, west during
zhang wang » zhang zhang, zhang fan, zhang yan
zhang fang » zhang fan, zhang zhang, zhang yan
risk along » risk among
ask along » past along, all along, us along
hua cost » a cost, eu cost, run cost
zhen » zheng, when, chen

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: zhen ((zhang wang) OR (zhang fang)) hua cost during ((risk along) OR (ask along)) shu ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "zhen ((zhang wang) OR (zhang fang)) hua cost during ((risk along) or (ask along)) shu ;~".
• Adding a wildcard symbol may retrieve word variants: zhen ((zhang wang) OR (zhang fang)) hua cost during ((risk along) or (ask along)) shu ;*.