Perhaps you should try some spelling variations:
doanh thanh » danh thanh, doanh nhan, dinh thanh
trung thanh » truong thanh
bien tinh » bi tinh, yen tinh, diep tinh
nhan dung » chan dung, nhan dang, ngan dung
thanh bac » nhanh bac, thanh bai, thanh san
dan dung » van dung, tin dung, ap dung
bac hang » bac thang, ban hang, bach khang
so bien » mot bien

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

• Performing a fuzzy search may retrieve terms with similar spellings: so bien tinh - doanh thanh ((nhan dung) or (dan dung)) trung thanh bac hang~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so bien tinh - doanh thanh ((nhan dung) OR (dan dung)) trung thanh bac hang.
• Adding a wildcard symbol may retrieve word variants: so bien tinh - doanh thanh ((nhan dung) or (dan dung)) trung thanh bac hang*.