Perhaps you should try some spelling variations:
ban doanh » van doanh, san doanh, ban danh
doanh van » doan van, doanh va, doanh ban
tang van » dang van, hoang van, trong van
su triet » su viet, ve triet
cua tre » cua te, cuu tre, cua triet
su tien » su kien, su hien, tu tieng
cau cua » cau qua, ca cua, cu cua
hieu ve » hieu va, hieu van
van hoi » van hoa, van hoc, van hoe
ky tang » ky nang, ky dang, kho tang
sac ky » cac ky, sai ky
ve cau » ke cau, va cau, ve cac
tu sac » tu sach, tu cac, tu san

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sac ky tang van hoi. hieu ve cau cua ban doanh van ((cua tre) or (((su triet) OR (su tien))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky tang van hoi. hieu ve cau cua ban doanh van ((cua tre) OR (((su triet) OR (su tien)))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky tang van hoi. hieu ve cau cua ban doanh van ((cua tre) or (((su triet) OR (su tien))))".
• Adding a wildcard symbol may retrieve word variants: tu sac ky tang van hoi. hieu ve cau cua ban doanh van ((cua tre) or (((su triet) OR (su tien))))*.