Perhaps you should try some spelling variations:
ban hang » ngan hang
hang doi » hang di, hang loi, huong doi
cham xuc » cam xuc, chat xuc, cham soc
ve cham » va cham, ve chat, vu cham
lai hoi » dai hoi, lai hoa, lai roi
dai hoa » dai khoa, dai hoc, dai hoi
hieu ve » hieu va, hieu van
xuc ban » duc ban, cuc ban, quoc ban
cua tu » cua tuc, cua cu, cua te
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
cua su » qua su

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 nang ((lai hoi) or (dai hoa)). hieu ve cham xuc ban hang doi ((cua tu) OR (cua su))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky nang ((lai hoi) OR (dai hoa)). hieu ve cham xuc ban hang doi ((cua tu) OR (cua su)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky nang ((lai hoi) or (dai hoa)). hieu ve cham xuc ban hang doi ((cua tu) OR (cua su))".
• Adding a wildcard symbol may retrieve word variants: tu sac ky nang ((lai hoi) or (dai hoa)). hieu ve cham xuc ban hang doi ((cua tu) OR (cua su))*.