Perhaps you should try some spelling variations:
nang dai » nang dau, nang tai, lang dai
cam thuc » am thuc, nam thuc, can thuc
hanh vai » hanh vi, hanh va, hanh tai
so sanh » do sanh
sanh va » hanh va, anh va, sinh va
va nang » van nang, da nang, cam nang
dai hoi » dai hoc, dai hai, dai moi
hieu ve » hieu va, hieu van
cam thu » nam thu, cac thu, ca thu
va hanh » van hanh, va thanh, va danh
vai cua » dai cua, hai cua, lai cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sanh va nang dai hoi. hieu ve ((cam thuc) or (cam thu)) va hanh vai cua vat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sanh va nang dai hoi. hieu ve ((cam thuc) OR (cam thu)) va hanh vai cua vat.
• Adding a wildcard symbol may retrieve word variants: so sanh va nang dai hoi. hieu ve ((cam thuc) or (cam thu)) va hanh vai cua vat*.