Perhaps you should try some spelling variations:
danh lai » danh sai, gianh lai, dinh lam
nam duoc » nam thuoc, da duoc, dat duoc
cua tre » cua te, cuu tre, cua triet
lai cua » dai cua, hai cua, lai chau
va danh » va dinh, va dan, va hanh
hieu ve » hieu va, hieu van
mai hoi » mai khoi, dai hoi, mai doi
lai hoi » dai hoi, lai hoa, lai roi
ky dang » ky nang, ky danh
sac ky » cac ky, sai ky
te sac » te sach, te cac, te san

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

• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ky dang ((mai hoi) OR (lai hoi)). hieu ve ((nam duoc) OR (cam xuc)) va danh lai cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sac ky dang ((mai hoi) OR (lai hoi)). hieu ve ((nam duoc) or (cam xuc)) va danh lai cua tre~".
• Adding a wildcard symbol may retrieve word variants: te sac ky dang ((mai hoi) OR (lai hoi)). hieu ve ((nam duoc) or (cam xuc)) va danh lai cua tre*.