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 dinh, nam dan
van danh » van doanh, van anh, van hanh
nang mai » nang ma, nang tai, lang mai
sai cua » dai cua, hai cua, lai cua
sach ky » sac ky, sach y, sach kem
mai hoi » mai khoi, dai hoi, lai hoi
sach ty » sach y, sach tu, sach thu
cua tre » cua te, cuu tre, cua triet

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