Perhaps you should try some spelling variations:
tang tai » hang tai, dung tai, sang tao
hieu van » thien van, lieu va, hieu ve
ban hanh » ban hang
ky tang » ky nang, ky dang, kho tang
tai hoi » tai khoi, dai hoi, tai hai
hieu va » lieu va, hieu qua
chao vu » chao xu, cao vu, chao chu
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
vu ban » tu ban, va ban
vi cua » vai cua, di cua
cua te » cua tu

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 tang tai hoi. ((hieu va) or (hieu van)) chao vu ban hanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky tang tai hoi. ((hieu va) OR (hieu van)) chao vu ban hanh vi cua te.
• Adding a wildcard symbol may retrieve word variants: tu sac ky tang tai hoi. ((hieu va) or (hieu van)) chao vu ban hanh vi cua te*.