Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
cuu tre » cua tre, cau tren, cau treo
va hanh » va thanh, va danh, ban hanh
mang xa » lang xa, mang may, dang xay
hieu ve » hieu va, hieu van
cac xuc » cam xuc, cac nuoc, chat xuc
de cuu » de cua
te sac » te sach, te cac, te san
sac ky » cac ky, sai ky
ve cac » va cac, vien cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sac ky ((mang xa) or (nang x)) hoi. hieu ve cac xuc ((va hanh) or (van hanh)) de cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ky ((mang xa) OR (nang x)) hoi. hieu ve cac xuc ((va hanh) OR (van hanh)) de cuu tre.
• Adding a wildcard symbol may retrieve word variants: te sac ky ((mang xa) or (nang x)) hoi. hieu ve cac xuc ((va hanh) or (van hanh)) de cuu tre*.