Perhaps you should try some spelling variations:
chanh doanh » chinh doanh, hanh doanh, chan doan
thanh thanh » nhanh thanh, thanh toan, thanh phan
tai thanh » thi thanh, tai chinh, ban thanh
thanh lam » thanh lap, hanh lam, thanh nam
tu chanh » tu hanh, tu thanh, tu chung
lam khi » lam kho, ham khai, lam khac
va khi » va kha, va ki
va chi » van chi, va che, va cai

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( tu chanh doanh ((va khi) OR (va chi)) đong luc ) or ( tai thanh thanh lam khi đong luc ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tu chanh doanh ((va khi) OR (va chi)) đong luc ) OR ( tai thanh thanh lam khi đong luc )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( tu chanh doanh ((va khi) OR (va chi)) đong luc ) or ( tai thanh thanh lam khi đong luc ))".
• Adding a wildcard symbol may retrieve word variants: (( tu chanh doanh ((va khi) OR (va chi)) đong luc ) or ( tai thanh thanh lam khi đong luc ))*.