Perhaps you should try some spelling variations:
mai khoi » mai khoa, tai khoa, cac khoi
hanh vai » hanh vi, hanh va, hanh tai
va hanh » van hanh, va thanh, va danh
vai cua » dai cua, hai cua, lai cua
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
ma hoi » mai hoi, xa hoi, ma hoa
va cao » va co, va dao, va bao

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sac ky nang ((ma hoi) or (mai khoi)). hieu ((va cac) or (va cao)) duc va hanh vai cua vat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky nang ((ma hoi) OR (mai khoi)). hieu ((va cac) OR (va cao)) duc va hanh vai cua vat.
• Adding a wildcard symbol may retrieve word variants: tu sac ky nang ((ma hoi) or (mai khoi)). hieu ((va cac) or (va cao)) duc va hanh vai cua vat*.