Perhaps you should try some spelling variations:
david zhang » david chan, david hand, david tang
david chang » david ching, david chan, david chieng
yuan yong » yuan ying, huan yong, kuan yong
yong hoi » yong ho, yong han, seng hoi
tan when » tan wen, tan chen, can when
wang da » wang dan, cang da, wang di
when da » when cda, when a, when do
hoi de » hui de, hoi ee, loi de
di tan » dui tan, yi tan, ji tan
de di » de yi, de li, de ji

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 chang)) wang da xi. ) or ( yuan yong hoi de di tan when da xi. ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( yuan yong hoi de ((david zhang) OR (david chang)) wang da xi. ) OR ( yuan yong hoi de di tan when da xi. )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( yuan yong hoi de ((david zhang) OR (david chang)) wang da xi. ) or ( yuan yong hoi de di tan when da xi. ))".
• Adding a wildcard symbol may retrieve word variants: (( yuan yong hoi de ((david zhang) OR (david chang)) wang da xi. ) or ( yuan yong hoi de di tan when da xi. ))*.