Perhaps you should try some spelling variations:
dang xay » dang van, van xay
tu sach » thu sach, su sach, te sach
sach ty » sach y, sach tu, sach thu
nang ma » tang ma, sang ma, nang cao
hieu va » lieu va, hieu qua
xuc van » duc van, luc van, xuc ban
van anh » van thanh, tuan anh, van minh
cua tre » cua te, cuu tre, cua triet
va cam » va cham, va cac, va cao
anh vi » hanh vi, anh va, anh ve
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: tu sach ty ((nang ma) or (dang xay)) hoi. hieu va cam xuc van anh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty ((nang ma) OR (dang xay)) hoi. hieu va cam xuc van anh vi cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sach ty ((nang ma) or (dang xay)) hoi. hieu va cam xuc van anh vi cua tre*.