Perhaps you should try some spelling variations:
nam danh » nam dinh, nam dan
hai cua » thai cua, dai cua, hoi cua
xa danh » va danh, dia danh, van danh
hieu he » hieu ve, hiem he, hieu le
cua tre » cua te, cuu tre, cua triet
sang ma » tang ma, nang ma, sang tao
ma hoi » mai hoi, xa hoi, ma hoa
sac ky » cac ky, sai ky
he nam » ha nam, nghe nam

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

• Performing a fuzzy search may retrieve terms with similar spellings: su ((sach y) or (sac ky)) sang ma hoi. hieu he nam thu ((xa danh) or (nam danh)) hai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sach y) OR (sac ky)) sang ma hoi. hieu he nam thu ((xa danh) OR (nam danh)) hai cua tre.
• Adding a wildcard symbol may retrieve word variants: su ((sach y) or (sac ky)) sang ma hoi. hieu he nam thu ((xa danh) or (nam danh)) hai cua tre*.