Perhaps you should try some spelling variations:
nhiem nghe » nghiep nghe, hiem ngheo
nghe nam » nghe lam, nghiep nam, nghe nano
danh sai » dung sai, danh bat, danh dau
tang van » dang van, hoang van, trong van
cua tre » cua te, cua triet, dua tren
xa danh » va danh, dia danh, nam danh
tu sach » thu sach, su sach, te sach
tang ma » mang may
cuu tre » cau tren, cau treo
thu xa » thu xac, thu ha, thu xe

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

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