Perhaps you should try some spelling variations:
meng yuan » meng hsuan, fang yuan, feng juan
wang anh » dang anh, wang yang, wang yan
anh tuan » anh tran, dinh tuan, oanh tran
wei yuan » wei guang, wei aun, wei lun
kong siu » kong eiu, wong siu, kong sar
tuan vu » thanh vu, tuan hua
sin » sign, sind, skin

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 anh tuan vu ((wei yuan) OR (meng yuan)) cheng ((kong siu) OR (dong sin)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang anh tuan vu ((wei yuan) or (meng yuan)) cheng ((kong siu) OR (dong sin)) ;~".
• Adding a wildcard symbol may retrieve word variants: wang anh tuan vu ((wei yuan) or (meng yuan)) cheng ((kong siu) OR (dong sin)) ;*.