Perhaps you should try some spelling variations:
sang minh » kang minah, anh minh, song min
minh hong » minh cong, min hong, linh hoang
qian yan » qian jun, qian yi
tuan hua » tuan vu, yuan hui
ban sang » bang bang, ban nong
wan yan » wang yan, nan yan, wai yan
tan hua » wang hua, tan chia, tan puay

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((wan yan) or (qian yan)) ((tuan hua) OR (tan hua)) ban sang minh hong tan ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((wan yan) OR (qian yan)) ((tuan hua) OR (tan hua)) ban sang minh hong tan ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wan yan) or (qian yan)) ((tuan hua) OR (tan hua)) ban sang minh hong tan ;".
• Adding a wildcard symbol may retrieve word variants: ((wan yan) or (qian yan)) ((tuan hua) OR (tan hua)) ban sang minh hong tan ;*.