Perhaps you should try some spelling variations:
bach tuoc » sach duoc, sach nuoc
hieu viec » nhieu viec, hieu ve, sieu viet
thanh doi » thanh loi, thanh moi, thanh do
hieu van » hieu va, thien van, lieu va
va thanh » gia thanh, ban thanh, va tinh
su sach » so sach, vu 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
tuoc va » thuoc va, nuoc va, duoc va
doi cua » dai cua, hoi 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: su sach ky lang xa hoi. ((hieu viec) OR (hieu van)) bach tuoc va thanh doi cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky lang xa hoi. ((hieu viec) OR (hieu van)) bach tuoc va thanh doi cua tre".
• Adding a wildcard symbol may retrieve word variants: su sach ky lang xa hoi. ((hieu viec) OR (hieu van)) bach tuoc va thanh doi cua tre*.