Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
tao khoi » tao hoi, thao khoa, tao boi
lao khoa » lo khoa, da khoa, ly khoa
dia danh » dia ban, gia dinh
nam thuc » nam thuoc, am thuc, nam thu
va danh » va dinh, va dan, va hanh
ky dang » ky nang, ky danh
hieu le » hieu ve, hieu he, hieu ly
de cua » le cua, te cua, dieu cua
su sac » su sach, su cac, su xac
sac ky » cac ky, sai ky
le nam » ly nam, he nam, le na

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 ky dang ((tao khoi) or (lao khoa)). hieu le nam thuc ((va danh) or (dia danh)) de cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ky dang ((tao khoi) OR (lao khoa)). hieu le nam thuc ((va danh) OR (dia danh)) de cua viet.
• Adding a wildcard symbol may retrieve word variants: su sac ky dang ((tao khoi) or (lao khoa)). hieu le nam thuc ((va danh) or (dia danh)) de cua viet*.