Perhaps you should try some spelling variations:
nam danh » nam dinh, nam dan
nang ma » tang ma, sang ma, nang cao
hieu he » hieu ve, hiem he, hieu le
va danh » va dinh, va dan, va hanh
sai cua » dai cua, hai cua, lai cua
cua tre » cua te, cuu tre, cua triet
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: tu ((sach y) or (sac ky)) nang ma hoa. hieu he nam thu ((va danh) or (nam danh)) sai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach y) OR (sac ky)) nang ma hoa. hieu he nam thu ((va danh) OR (nam danh)) sai cua tre.
• Adding a wildcard symbol may retrieve word variants: tu ((sach y) or (sac ky)) nang ma hoa. hieu he nam thu ((va danh) or (nam danh)) sai cua tre*.