Perhaps you should try some spelling variations:
cohen weng » cohen gene
kuan yong » kuan ying, huan yong, wan yong
dye david » rye david, dole david, lee david
yong han » yong chean, yong heng
han dye » jan dyer
weng da » wang da, neng da, weng wah
han de » zhan de, chan de, shan de
di tan » dui tan, yi tan, ji tan
de di » de yi, de li, de ji
weng » wheng
wen » when

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: (( kuan yong han dye david cohen weng da xi. ) OR ( kuan yong han de di tan wen da xi. ))~.
• Adding a wildcard symbol may retrieve word variants: (( kuan yong han dye david cohen weng da xi. ) or ( kuan yong han de di tan wen da xi. ))*.