Perhaps you should try some spelling variations:
danh sai » dung sai, danh bat, danh dau
nghe nam » nghe lam, nghiep nam, nghe nano
sai cua » dai cua, hai cua, lai cua
xa danh » va danh, dia danh, nam danh
sach ky » sac ky, sach ty, sach kem
cua tre » cua te, cuu tre, cua triet
nang ma » tang ma, sang ma, nang cao
ma hoi » mai hoi, xa hoi, ma hoa
he nam » ha nam
thu xa » thu xac, thu ha, thu xe

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