Perhaps you should try some spelling variations:
dunning john » gunning jan
huang jing » huang ting, huang ying, wang jing
longo john » kong john, wong john
jing yang » jing fang, ying yang, wang yang
ding john » king john, kong john, wong john
yang jui » yang judy, yang di, yang xi
song sar » kong sar, using sar, song pae

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: huang jing yang jui lu ((((ding john) OR (dunning john))) OR (longo john)) song sar ;~.
• Adding a wildcard symbol may retrieve word variants: huang jing yang jui lu ((((ding john) or (dunning john))) or (longo john)) song sar ;*.