Perhaps you should try some spelling variations:
thieu nien » thien nhien
nhieu viec » hieu viec, nhien viet
bach duoc » bach tuoc, sach duoc, ban duoc
thanh vai » thanh hai, thanh van, thanh tai
duoc gia » duoc giao, quoc gia, duc gia
su sach » so sach, vu sach
sach ty » sach y, sach tu, sach thu
ty tang » tay tang, ty xang, ty hang
tang ha » lang ha, tang ma, trung ha
vai cua » dai cua, hai cua, lai cua
cua tre » cua te, cuu tre, cua triet
ha hoi » hoa hoi, ha noi, xa hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ty tang ha hoi. ((thieu nien) or (nhieu viec)) bach duoc gia thanh vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ty tang ha hoi. ((thieu nien) OR (nhieu viec)) bach duoc gia thanh vai cua tre.
• Adding a wildcard symbol may retrieve word variants: su sach ty tang ha hoi. ((thieu nien) or (nhieu viec)) bach duoc gia thanh vai cua tre*.