Perhaps you should try some spelling variations:
va triet » va thiet, va trien, ve triet
tang tai » hang tai, dung tai, sang tao
hanh vai » hanh vi, hanh va, hanh tai
ban hanh » ban hang
tham luc » than luc, tham nuoc, tham thuc
tai hoi » tai khoi, dai hoi, tai hai
hieu va » lieu va, hieu qua
va tham » van tham, va cham, va thanh
luc ban » duc ban, cuc ban, luc bat
sac ky » cac ky
vai va » mai va, dai va, hai va

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) or (sai ky)) tang tai hoi. hieu va tham luc ban hanh vai va triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sac ky) OR (sai ky)) tang tai hoi. hieu va tham luc ban hanh vai va triet.
• Adding a wildcard symbol may retrieve word variants: tu ((sac ky) or (sai ky)) tang tai hoi. hieu va tham luc ban hanh vai va triet*.