Perhaps you should try some spelling variations:
hieu nghe » lieu nghe, hiem ngheo, nhiem nghe
nghe nam » nghe lam, nghiep nam, nghe nano
danh sai » dung sai, danh bat, danh dau
ha danh » han danh, hoa danh, ha anh
cua tre » cuu tre, cua triet, dua tren
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
ma hoi » mai hoi, xa hoi, me hoi
cua te » cua tu

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

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