Perhaps you should try some spelling variations:
meng hsuan » meng yuan
huang ying » huang jing, huang ting, huang yang
ying zeng » yin peng, ying yang
zeng doug » jeng dong, zeng douglas
wing sun » liang sun, cong sun, nina sun
yan guan » gan guan, yan yuan, yang guang
doug bin » dong bin, dort bin, org bin
dong di » dong sin
nan ya » nan yan, nana yaa

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: ((wing sun) OR (dong di)) ((((yan guan) OR (nan ya))) OR (meng hsuan)) huang ying zeng doug bin ;~.
• Adding a wildcard symbol may retrieve word variants: ((wing sun) or (dong di)) ((((yan guan) or (nan ya))) or (meng hsuan)) huang ying zeng doug bin ;*.