Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
ban banh » ban hanh, ban anh, ban danh
sach ky » sac ky, sach y, sach ty
hieu va » lieu va, hieu qua
cac cuc » cac cuoc, cac cua, cac nuoc
cuc ban » cua ban, cac ban, cuu ban
do cua » doi cua, co cua, de cua
x hoi » o hoi, x ho, 5 hoi
d cua » de cua, da cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach ky nang ((x hoi) or (xa hoi)). hieu va cac cuc ban banh ((d cua) or (do cua)) tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ky nang ((x hoi) OR (xa hoi)). hieu va cac cuc ban banh ((d cua) OR (do cua)) tu.
• Adding a wildcard symbol may retrieve word variants: thu sach ky nang ((x hoi) or (xa hoi)). hieu va cac cuc ban banh ((d cua) or (do cua)) tu*.