Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
va hanh » van hanh, va thanh, ban hanh
ky sang » ky dang, ky tang, duy sang
tao hoi » tao khoi, tao boi, tay hoi
hieu he » hieu ve, hiem he, hieu le
va danh » va dinh, va dan, dia danh
di cua » dai cua, doi cua, de cua
su sac » su sach, su cac, su xac
a thuc » am thuc, va thuc, ha thuc
he a » he xa, he va, e a

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 sang) or (ky nang)) tao hoi. hieu he a thuc ((va hanh) or (va danh)) di cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ((ky sang) OR (ky nang)) tao hoi. hieu he a thuc ((va hanh) OR (va danh)) di cua viet.
• Adding a wildcard symbol may retrieve word variants: su sac ((ky sang) or (ky nang)) tao hoi. hieu he a thuc ((va hanh) or (va danh)) di cua viet*.