Perhaps you should try some spelling variations:
doanh van » doan van, doanh va, doanh ban
vay doanh » van doanh, ly doanh, voi doanh
cua tre » cua te, cuu tre, cua triet
van cua » vang cua, ban cua, dan cua
tac vay » tac va, tac van, tac cay
cac tac » cac toc, cac bac, cac dac
hieu va » lieu va, hieu qua
hieu ve » hieu van
dang ha » dong ha, dung ha, lang ha
ky dang » ky nang, ky danh
te sach » toc sach
ha hoi » hoa hoi, ha noi, xa hoi
te sac » te cac, te san

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) OR (te sach)) ky dang ha hoi. ((hieu ve) OR (hieu va)) cac tac vay doanh van cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sac) or (te sach)) ky dang ha hoi. ((hieu ve) OR (hieu va)) cac tac vay doanh van cua tre~".
• Adding a wildcard symbol may retrieve word variants: ((te sac) or (te sach)) ky dang ha hoi. ((hieu ve) OR (hieu va)) cac tac vay doanh van cua tre*.