Perhaps you should try some spelling variations:
nang mai » nang ma, nang tai, lang mai
mai khoi » mai khoa, tai khoa, cac khoi
nam danh » nam dinh, nam dan
cua tre » cua te, cuu tre, cua triet
xa danh » va danh, dia danh, van danh
hieu le » hieu he, hieu ly, tieu le
sai cua » dai cua, hai cua, lai cua
hieu ve » hieu va, hieu van
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky

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 mai khoi. ((hieu le) or (hieu ve)) nam thu ((xa danh) or (nam danh)) sai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky nang mai khoi. ((hieu le) OR (hieu ve)) nam thu ((xa danh) OR (nam danh)) sai cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sac ky nang mai khoi. ((hieu le) or (hieu ve)) nam thu ((xa danh) or (nam danh)) sai cua tre*.