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

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach y nang ((x hoi) OR (x ho)). hieu ve bach tuoc va hanh lai cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach y 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 y nang ((x hoi) OR (x ho)). hieu ve bach tuoc va hanh lai cua tre*.