Perhaps you should try some spelling variations:
yuan ping » yuan ming, yuan ting, yuen ping
liu gang » liu gangs, liu yang, li gang
kong siu » kong eiu, wong siu, dong sin
dong di » dong sin
ya yuan » yan yuan
yi yang » yin yang, yi gang, yu yang
yu fang » yu gang, yu wang, yu yang
wang » wing, wan, lang

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