Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
thu sang » thu hang, thu san, thu bang
thai cua » than cua, tai cuc, tri cua
dua ban » dia ban, cua ban, qua ban
hai cuc » tai cuc, hai cua, hai huoc
nam dua » nam da, nam cua, nam mua
sang ky » sang kyo, dang ky, tang ky
hieu va » lieu va, hieu qua
lai hoi » dai hoi, lai hoa, lai roi
va nam » van nam, ha nam, va nay

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: thu sang ky nang ((lai hoi) or (ma hoa)). hieu va nam dua ban thanh ((thai cua) or (hai cuc)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sang ky nang ((lai hoi) OR (ma hoa)). hieu va nam dua ban thanh ((thai cua) OR (hai cuc)) tre.
• Adding a wildcard symbol may retrieve word variants: thu sang ky nang ((lai hoi) or (ma hoa)). hieu va nam dua ban thanh ((thai cua) or (hai cuc)) tre*.