Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
nam thuc » nam thuoc, am thuc, nam thu
ky sang » ky nang, ky dang, ky tang
sang ma » tang ma, nang ma, sang tao
hieu le » hieu ve, hieu he, hieu ly
thuc va » thuc vat, thuc dan, thuc day
va hanh » van hanh, va thanh, va danh
hanh di » hanh vi, hanh de, hang di
su xac » pu xac, su cac
ma hoi » mai hoi, xa hoi, ma hoa
le nam » ly nam, he nam, le na
di cua » dai cua, doi cua, de cua
su sac » su sach, su cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((su sac) OR (su xac)) ky sang ma hoi. hieu le nam thuc va hanh di cua viet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sac) OR (su xac)) ky sang ma hoi. hieu le nam thuc va hanh di cua viet".
• Adding a wildcard symbol may retrieve word variants: ((su sac) OR (su xac)) ky sang ma hoi. hieu le nam thuc va hanh di cua viet*.