Perhaps you should try some spelling variations:
so sach » so sanh, bo sach, co sach
sach tu » sach thu, cach tu, sach ty
tu xang » ty xang, tu lang, tu quang
xang xa » lang xa, mang xa, ang xa
qua hai » qua hoat
danh vi » hanh vi, dinh vi, danh di
cua tre » cua te, cuu tre, cua triet
qua ca » qua cac, qua cua, qua cai
xac va » tac va, ac va, bac va
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach tu xang xa hoi. hieu ((qua ca) or (qua hai)) ((xac va) or (duc va)) danh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach tu xang xa hoi. hieu ((qua ca) OR (qua hai)) ((xac va) OR (duc va)) danh vi cua tre.
• Adding a wildcard symbol may retrieve word variants: so sach tu xang xa hoi. hieu ((qua ca) or (qua hai)) ((xac va) or (duc va)) danh vi cua tre*.