Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
danh vai » danh sai, danh va, doanh van
cam thuc » nam thuc, cam thu, can thuc
hieu van » hieu va, thien van, lieu va
lai hoi » dai hoi, lai hoa, lai roi
mai doi » moi doi, mai hoi, mai khoi
va danh » va dinh, va dan, va hanh
vai cua » dai cua, hai cua, lai cua
so sanh » do sanh
sanh v » sanh va, canh v, sanh _
v nang » va nang, vu nang, van nang

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

• If you are trying to use Boolean operators, they must be ALL CAPS: so sanh v nang ((mai doi) OR (lai hoi)). hieu van ((cam thuc) OR (am thuc)) va danh vai cua viet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sanh v nang ((mai doi) or (lai hoi)). hieu van ((cam thuc) OR (am thuc)) va danh vai cua viet~".
• Adding a wildcard symbol may retrieve word variants: so sanh v nang ((mai doi) or (lai hoi)). hieu van ((cam thuc) OR (am thuc)) va danh vai cua viet*.