Perhaps you should try some spelling variations:
than china » tuan china, han china, wuhan china
boon chong » boon siong, joon chang
yang boon » ong boon
wing ian » wing tan, twinn ian, wing sun
tuan hua » tan hua, tuan vu, yuan hui
tan yang » dan yang, tan ying, tan yong
chong ha » chang ha, chong nam, chong wan

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 ((tuan hua) or (than china)) tan yang boon chong ha ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wing ian ((tuan hua) OR (than china)) tan yang boon chong ha ;*.