Perhaps you should try some spelling variations:
yuen ping » chen ping, fun ping, xue ping
liu gang » liu gangs, liu yang, li gang
kong siu » kong eiu, wong siu, dong sin
wan yan » wang yan, nan yan, wai yan
dong di » dong sin
yi yang » yin yang, yi gang, yu yang
yu fang » yu gang, yu wang, yu yang

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: ((wan yan) OR (dong di)) ya yuen ping ((((yi yang) OR (liu gang))) OR (yu fang)) kong siu ;~.
• Adding a wildcard symbol may retrieve word variants: ((wan yan) or (dong di)) ya yuen ping ((((yi yang) or (liu gang))) or (yu fang)) kong siu ;*.