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