Perhaps you should try some spelling variations:
doanh van » doan van, doanh va, doanh ban
thu bang » thu hang, chu bang, thu trang
va doanh » van doanh, vay doanh, va danh
cham doc » cham soc, chat doc, chau doc
su sach » so sach, vu sach
van cua » vang cua, ban cua, dan cua
cua tre » cua te, cuu tre, cua triet
hieu va » hieu qua
thu ban » thu hang
doc va » duoc va, hoc va, duc va

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

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