Perhaps you should try some spelling variations:
cheng wong » cheng leong, chen wang, chang won
meng yuan » meng hsuan, fang yuan, feng juan
chen rong » chen yang
yan tuan » yan guan, yan yuan, anh tuan
wei yuan » wei guang, wei aun, wei lun
tuan vu » thanh vu, tuan hua
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 tuan vu ((wei yuan) OR (meng yuan)) ((cheng wong) OR (chen rong)) siu ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yan tuan vu ((wei yuan) or (meng yuan)) ((cheng wong) OR (chen rong)) siu ;~".
• Adding a wildcard symbol may retrieve word variants: wang yan tuan vu ((wei yuan) or (meng yuan)) ((cheng wong) OR (chen rong)) siu ;*.