Perhaps you should try some spelling variations:
hieu viec » nhieu viec, hieu ve, sieu viet
bach tuoc » sach duoc
sach nuoc » sach duoc, cac nuoc, dich nuoc
van hanh » van thanh, ban hanh, van anh
hanh lai » hanh lam, hanh tai, thanh lap
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
lai cua » dai cua, hai cua, lai chau
cua tre » cua te, cuu tre, cua triet
x hoi » xa hoi, o hoi, x ho

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 ky nang x hoi. hieu viec ((bach tuoc) or (sach nuoc)) van hanh lai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang x hoi. hieu viec ((bach tuoc) OR (sach nuoc)) van hanh lai cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang x hoi. hieu viec ((bach tuoc) or (sach nuoc)) van hanh lai cua tre*.