Perhaps you should try some spelling variations:
hieu hien » bieu hien, dieu hien, chieu chien
nang mai » nang ma, nang tai, lang mai
nam thuc » nam thuoc, am thuc, nam thu
va thanh » gia thanh, ban thanh, va tinh
mai hoi » mai khoi, dai hoi, lai hoi
hieu le » hieu ve, hieu he, hieu ly
va danh » va dinh, va dan, va hanh
su cac » tu cac, su cao, su can
di cua » dai cua, doi cua, de cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: su cac ky nang mai hoi. ((hieu le) or (hieu hien)) nam thuc ((va thanh) or (va danh)) di cua vat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su cac ky nang mai hoi. ((hieu le) OR (hieu hien)) nam thuc ((va thanh) OR (va danh)) di cua vat.
• Adding a wildcard symbol may retrieve word variants: su cac ky nang mai hoi. ((hieu le) or (hieu hien)) nam thuc ((va thanh) or (va danh)) di cua vat*.