Perhaps you should try some spelling variations:
thu nang » thi nang, thu hang, thu bang
ban danh » ban doanh, ban hanh, ban dan
sach thu » sach thue, sach thieu, sach tham
su sach » so sach, vu sach
cuc ban » cua ban, cac ban, cuu ban
danh d » danh di, danh du, anh d
va cao » va co, va dao, va bao
cua te » cua tu
x hoi » o hoi, x ho, 5 hoi
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: su sach thu nang ((x hoi) OR (xa hoi)). hieu ((va cao) OR (va cac)) cuc ban danh d cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach thu nang ((x hoi) or (xa hoi)). hieu ((va cao) OR (va cac)) cuc ban danh d cua te~".
• Adding a wildcard symbol may retrieve word variants: su sach thu nang ((x hoi) or (xa hoi)). hieu ((va cao) OR (va cac)) cuc ban danh d cua te*.