Perhaps you should try some spelling variations:
hiem ngheo » giam ngheo, nhiem nghe
lieu nghe » lieu nhe, lieu nghien, lieu nha
danh sai » dung sai, danh bat, danh dau
han danh » van danh, phan dang, nhan dang
cua tre » cua te, cuu tre, cua triet
sai cua » dai cua, hai cua, lai cua
thu han » thu hang, thu hoan, thu nhan
sac ky » cac ky, sai ky
ma hoi » mai hoi, xa hoi, me hoi
tu sac » tu sach, tu cac, tu san

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)). ((hiem ngheo) or (lieu nghe)) nam thu han danh sai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky nang ((ma hoi) OR (ma hoa)). ((hiem ngheo) OR (lieu nghe)) nam thu han danh sai cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sac ky nang ((ma hoi) or (ma hoa)). ((hiem ngheo) or (lieu nghe)) nam thu han danh sai cua tre*.