Perhaps you should try some spelling variations:
dunning john » gunning jan
jing huang » jing fang
longo john » kong john
wang jing » wang ning, wang liang, wang yang
huang lin » huang bin, huang jing, huang ting
wong john » wrong john, kong john, young john
wong sau » wong sam, wong siu, wong shiu
lin als » sein als

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 jing huang lin als ((dunning john) OR (((wong john) OR (longo john)))) wong sau ;~.
• Adding a wildcard symbol may retrieve word variants: wang jing huang lin als ((dunning john) or (((wong john) or (longo john)))) wong sau ;*.