Perhaps you should try some spelling variations:
hieu nghe » lieu nghe, hiem ngheo, nhiem nghe
nghe nam » nghe lam, nghiep nam, nghe nano
nam danh » nam dan
nang ma » tang ma, sang ma, nang cao
xa danh » va danh, dia danh, van danh
sai cua » dai cua, hai cua, lai cua
cua tre » cua te, cuu tre, cua triet
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
ma hoi » mai hoi, xa hoi, ma hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sac ky nang ma hoi. hieu nghe nam thu ((xa danh) or (((nam danh) OR (nam dinh)))) sai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky nang ma hoi. hieu nghe nam thu ((xa danh) OR (((nam danh) OR (nam dinh)))) sai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky nang ma hoi. hieu nghe nam thu ((xa danh) or (((nam danh) OR (nam dinh)))) sai cua tre".
• Adding a wildcard symbol may retrieve word variants: tu sac ky nang ma hoi. hieu nghe nam thu ((xa danh) or (((nam danh) OR (nam dinh)))) sai cua tre*.