Perhaps you should try some spelling variations:
knowing about » known about, know about, knowing your
john knowing » how knowing, john bowring, john king
huang ying » huang jing, huang yang, huang bin
huang ting » huang jing, huang bin, huang lin
zhang wei » zhen wei
1 king » _ king
wei 1 » web 1, wei _
wang » wing, wan, lang

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: ((wang yan) OR (((huang ying) OR (huang ting)))) zhang wei 1 king john knowing about ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang yan) or (((huang ying) OR (huang ting)))) zhang wei 1 king john knowing about ;~".
• Adding a wildcard symbol may retrieve word variants: ((wang yan) or (((huang ying) OR (huang ting)))) zhang wei 1 king john knowing about ;*.