Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
xang xa » lang xa, mang xa, ang xa
su cham » su pham, vu cham, qua cham
tu cham » toc cham, thi cham
va hanh » van hanh, va thanh, va danh
y xang » ty xang
soc va » hoc va, loc va, doc va
vi cua » vai cua, di cua
cua cu » cua chu, cua cau, cua su

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: thuoc sach y xang xa hoi. hieu ((su cham) OR (tu cham)) soc va hanh vi cua cu~.
• Adding a wildcard symbol may retrieve word variants: thuoc sach y xang xa hoi. hieu ((su cham) or (tu cham)) soc va hanh vi cua cu*.