Perhaps you should try some spelling variations:
sach ky » sac ky, sach ty, sach kem
danh di » danh du, xanh di, danh dien
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
di cua » dai cua, doi cua, de 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 di 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 di 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 di cua tre*.