Perhaps you should try some spelling variations:
ban doanh » van doanh, san doanh, toan doanh
sach thu » sach thue, sach thieu, sach tham
thu nang » thi nang, thu hang, thu bang
ban danh » ban hanh, ban dan, van danh
tu sach » thu sach, su sach, te sach
hieu va » lieu va, hieu qua
cam cua » ca cua, nam cua, cau cua
cua tre » cua te, cuu tre, cua triet
va cam » va cham, va cac, va cao
x hoi » xa hoi, o hoi, x ho
d cua » de cua, do cua, da cua

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: tu sach thu nang x hoi. hieu va cam cua ((ban danh) OR (ban doanh)) d cua tre~.
• Adding a wildcard symbol may retrieve word variants: tu sach thu nang x hoi. hieu va cam cua ((ban danh) or (ban doanh)) d cua tre*.