Perhaps you should try some spelling variations:
wang shawn » tan shawn
shawn sher » khan sher
sher zhang » zhen zhang, shen chang
zhang minh » zhang ming, zhang xin, chang min
qiao wang » qian wang, xiao yang
zhong zhi » zhang zhi, hong ghi
zhong tai » hong tan, hong hai

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: wang qiao wang shawn sher zhang minh ((zhong zhi) or (zhong tai)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang qiao wang shawn sher zhang minh ((zhong zhi) OR (zhong tai)) ;.
• Adding a wildcard symbol may retrieve word variants: wang qiao wang shawn sher zhang minh ((zhong zhi) or (zhong tai)) ;*.