Perhaps you should try some spelling variations:
than china » tuan china, han china, wuhan china
boon chong » boon siong, joon chang
yong boon » ong boon, yong yoon, yong khoon
wing ian » wing tan, twinn ian, wing sun
tan yong » tan hong, tan kong, tan yang
chong ha » chang ha, chong nam, chong wan
han hua » tan hua, wang hua, tuan hua

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

• Performing a fuzzy search may retrieve terms with similar spellings: wing ian ((han hua) or (than china)) tan yong boon chong ha ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wing ian ((han hua) OR (than china)) tan yong boon chong ha ;*.