Perhaps you should try some spelling variations:
nhieu viec » hieu viec, nhien viet
hieu hien » bieu hien, dieu hien, chieu chien
bach duoc » bach tuoc, sach duoc, ban duoc
duoc gia » duoc giao, quoc gia, duc gia
thanh di » thanh doi, thanh de, thanh do
tu sach » thu sach, su sach, te sach
sach ty » sach y, sach tu, sach thu
ty lang » tay lang, ty xang, ty hang
lang xa » lang ha, dang xay, lang van
cua tre » cua te, cuu tre, cua triet
di cua » dai cua, doi cua, de cua

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