Perhaps you should try some spelling variations:
hieu viec » nhieu viec, hieu ve, sieu viet
sach duoc » sach dao, sach dung, sinh duoc
sach nuoc » cac nuoc, bach tuoc, dich nuoc
hanh tai » thanh tai, hang tai, han tai
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
va hanh » van hanh, va thanh, va danh
tai cua » thai cua, tai cuc, tri cua
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 ((sach duoc) or (sach nuoc)) va hanh tai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang x hoi. hieu viec ((sach duoc) OR (sach nuoc)) va hanh tai cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang x hoi. hieu viec ((sach duoc) or (sach nuoc)) va hanh tai cua tre*.