Perhaps you should try some spelling variations:
sach ky » sac ky, sach ty, sach kem
danh vi » hanh vi, dinh vi, danh di
xa danh » va danh, dia danh, nam danh
cac tuc » cac toc, cac tu, cac tac
hieu ve » hieu va, hieu van
lang xa » lang ha, dang xay, lang van
cua tre » cua te, cuu tre, cua triet
mang xa » mang may, dang xay, mang cua
ve cac » va cac, vien cac
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) or (sach y)) ((mang xa) or (lang xa)) hoi. hieu ve cac tuc xa danh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ky) OR (sach y)) ((mang xa) OR (lang xa)) hoi. hieu ve cac tuc xa danh vi cua tre.
• Adding a wildcard symbol may retrieve word variants: tu ((sach ky) or (sach y)) ((mang xa) or (lang xa)) hoi. hieu ve cac tuc xa danh vi cua tre*.