Perhaps you should try some spelling variations:
hieu nghe » lieu nghe, hiem ngheo, nhiem nghe
nghe nam » nghe lam, nghiep nam, nghe nano
va thanh » gia thanh, ban thanh, va tinh
nam thuc » nam thuoc, am thuc, nam thu
thuc va » thuc vat, thuc dan, thuc day
lai cua » dai cua, hai cua, lai chau
vi cua » vai cua, di cua
vu sac » vu sach, vu san, va sac
sac ky » cac ky, sai ky
ma hoi » mai hoi, xa hoi, me hoi

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

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