Perhaps you should try some spelling variations:
zhang kim » kang kim, zhang i, zhang ii
zhang xin » zhang jian, zhang ming, zhang fan
song thin » song shin, song jin, song min
yan yuan » yan guan, fang yuan, nan yan
yuan zi » yan zi, yuan li, yuan fei
wang » lang
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: ((wang OR wan) OR wing) yan yuan zi zhen ((zhang kim) OR (zhang xin)) song thin ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang or wan) or wing) yan yuan zi zhen ((zhang kim) OR (zhang xin)) song thin ;~".
• Adding a wildcard symbol may retrieve word variants: ((wang or wan) or wing) yan yuan zi zhen ((zhang kim) OR (zhang xin)) song thin ;*.