Perhaps you should try some spelling variations:
hieu nghe » lieu nghe, hiem ngheo, nhiem nghe
cau tren » cu tren, dau tren, ca tren
nam danh » nam dinh, nam dan
nghe nam » nghe lam, nghiep nam, nghe nano
cua tre » cua te, cuu tre, cua triet
tu sach » thu sach, su sach, te sach
sach ty » sach y, sach tu, sach thu
xa danh » va danh, dia danh, van danh
tang ma » mang may, tang van
ty tang » tay tang, ty xang, ty hang

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 ty tang ma hoa. hieu nghe nam thu ((xa danh) or (nam danh)) sai ((cua tre) or (cau tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty tang ma hoa. hieu nghe nam thu ((xa danh) OR (nam danh)) sai ((cua tre) OR (cau tren)).
• Adding a wildcard symbol may retrieve word variants: tu sach ty tang ma hoa. hieu nghe nam thu ((xa danh) or (nam danh)) sai ((cua tre) or (cau tren))*.