Perhaps you should try some spelling variations:
doanh thanh » danh thanh, doanh nhan, dinh thanh
trung thanh » truong thanh
nhan dung » chan dung, nhan dang, ngan dung
thanh ban » thanh san, thanh van, thanh bac
dan dung » van dung, tin dung, ap dung
ban hang » ngan hang
bi tinh » vi tinh
so bi » so di, so li, so ki

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

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