Perhaps you should try some spelling variations:
doanh vang » doanh van, doanh sang, doanh quang
van doanh » toan doanh, van dong, van thanh
thu bang » thu hang, chu bang, thu trang
vang cua » mang cua, hang cua, tang cua
te sach » toc sach
duc van » duc va, duc tan, duc manh
cao duc » dao duc, cao suc, giao duc
cua tre » cua te, cuu tre, cua triet
hieu va » lieu va
thu ban » thu hang

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ((thu bang) OR (thu ban)) xa hoi. ((hieu va) or (hieu qua)) cao duc van doanh vang cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((thu bang) OR (thu ban)) xa hoi. ((hieu va) OR (hieu qua)) cao duc van doanh vang cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((thu bang) OR (thu ban)) xa hoi. ((hieu va) or (hieu qua)) cao duc van doanh vang cua tre*".