Perhaps you should try some spelling variations:
van doanh » toan doanh, van dong, van thanh
vay doanh » ly doanh, voi doanh, von doanh
ky dang » ky nang, ky danh
dang ha » dong ha, dung ha, lang ha
cua tre » cuu tre, cua triet, dua tren
hieu ve » hieu va, hieu van
cac tac » cac toc, cac bac, cac dac
te sac » te sach, te cac, te san
sac ky » cac ky, sai ky
ve cac » va cac, vien cac
ha hoi » hoa hoi, ha noi, xa hoi
cua te » cua tu

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

• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ky dang ha hoi. hieu ve cac tac ((vay doanh) OR (van doanh)) van ((cua tre) OR (cua te))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sac ky dang ha hoi. hieu ve cac tac ((vay doanh) or (van doanh)) van ((cua tre) OR (cua te))~".
• Adding a wildcard symbol may retrieve word variants: te sac ky dang ha hoi. hieu ve cac tac ((vay doanh) or (van doanh)) van ((cua tre) OR (cua te))*.