Perhaps you should try some spelling variations:
david zhang » david chang, david chan, david hand
david ching » david machin
yuan yong » yuan ying, huan yong, kuan yong
yong hoi » yong ho, yong han, seng hoi
san wen » tan wen
hoi de » hui de, hoi ee, loi de
yi san » yi shan, yi hsan, di san

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( yuan yong hoi de ((david zhang) or (david ching)) wen da xi. ) or ( yuan yong hoi de yi san wen da xi. ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( yuan yong hoi de ((david zhang) OR (david ching)) wen da xi. ) OR ( yuan yong hoi de yi san wen da xi. )).
• Adding a wildcard symbol may retrieve word variants: (( yuan yong hoi de ((david zhang) or (david ching)) wen da xi. ) or ( yuan yong hoi de yi san wen da xi. ))*.