Perhaps you should try some spelling variations:
kho dung » khoa dung, khao dung, kha dung
hieu van » hieu va, thien van, lieu va
ban hanh » ban hang
sac kho » suc khoe, cac khoi, dac khoa
tai hoi » tai khoi, dai hoi, tai hai
hieu ve » hieu va
chao tu » chao xu, cho tu, cao tu
tu sac » tu sach, tu cac, tu san
tu ban » thu ban, te 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 kho dung tai hoi. ((hieu ve) or (hieu van)) chao tu ban hanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac kho dung tai hoi. ((hieu ve) OR (hieu van)) chao tu ban hanh vi cua te.
• Adding a wildcard symbol may retrieve word variants: tu sac kho dung tai hoi. ((hieu ve) or (hieu van)) chao tu ban hanh vi cua te*.