Perhaps you should try some spelling variations:
bach tuoc » sach duoc, sach nuoc
thu sach » thuat sach, thuoc sach, thu hoach
hanh lai » hanh lam, hanh tai, thanh lap
tu sach » su sach, te sach, tu cach
ve bach » ve cach, vu bach, vi bach
lai cua » dai cua, hai cua, lai chau
va hanh » van hanh, va thanh, va danh
tuoc va » thuoc va, nuoc va, duoc va
hieu ve » hieu va, hieu van
ly nang » ky nang, ly hang, ly vang
cua tre » cua te, cuu tre, cua triet
x hoi » xa hoi, o hoi, 5 hoi

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) OR (thu sach)) ly nang ((x hoi) OR (x ho)). hieu ve bach tuoc va hanh lai cua tre~.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (thu sach)) ly nang ((x hoi) or (x ho)). hieu ve bach tuoc va hanh lai cua tre*.