Perhaps you should try some spelling variations:
dang mau » dong mau, dang van, dang su
van hanh » van thanh, ban hanh, van anh
cua tre » cua te, cuu tre, cua triet
va hanh » va thanh, va danh, ban hanh
ky dang » ky nang, ky danh
mau hoi » cau hoi, mai hoi, mau ho
lai cua » dai cua, hai cua, lai chau
vu cham » va cham, vu kham, tu cham
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 dang mau hoi. hieu ((ve cac) or (vu cham)) luc ((va hanh) or (van hanh)) lai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ky dang mau hoi. hieu ((ve cac) OR (vu cham)) luc ((va hanh) OR (van hanh)) lai cua tre.
• Adding a wildcard symbol may retrieve word variants: te sac ky dang mau hoi. hieu ((ve cac) or (vu cham)) luc ((va hanh) or (van hanh)) lai cua tre*.