Perhaps you should try some spelling variations:
nhieu viec » nhien viet
hieu viec » hieu ve, sieu viet, hieu hien
bach duoc » bach tuoc, sach duoc, ban duoc
thanh vai » thanh hai, thanh van, thanh tai
duoc gia » duoc giao, quoc gia, duc gia
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
vai cua » dai cua, hai cua, lai cua
cua tre » cua te, cuu tre, cua triet

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 lang xa hoi. ((hieu viec) or (nhieu viec)) bach duoc gia thanh vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky lang xa hoi. ((hieu viec) OR (nhieu viec)) bach duoc gia thanh vai cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sach ky lang xa hoi. ((hieu viec) or (nhieu viec)) bach duoc gia thanh vai cua tre*.