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