Perhaps you should try some spelling variations:
tang tai » hang tai, dung tai, sang tao
hieu van » hieu va, thien van, lieu va
ban hanh » ban hang
ky tang » ky nang, ky dang, kho tang
tai hoi » tai khoi, dai hoi, tai hai
hieu ve » hieu va
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 ve) OR (hieu van)) chao vu ban hanh vi cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky tang tai hoi. ((hieu ve) 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 ve) OR (hieu van)) chao vu ban hanh vi cua te*.