Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
than cua » nhan cua, thai cua, ban cua
thu dan » thuc dan, thu dang, thu ban
dua ban » dia ban, cua ban, qua ban
hai cuc » tai cuc, hai cua, thai cua
nam dua » nam da, nam cua, nam mua
hieu va » lieu va, hieu qua
mai hoi » mai khoi, dai hoi, lai hoi
dan ky » van ky
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 dan ky nang ((mai hoi) or (ma hoa)). hieu va nam dua ban thanh ((than cua) or (hai cuc)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu dan ky nang ((mai hoi) OR (ma hoa)). hieu va nam dua ban thanh ((than cua) OR (hai cuc)) tre.
• Adding a wildcard symbol may retrieve word variants: thu dan ky nang ((mai hoi) or (ma hoa)). hieu va nam dua ban thanh ((than cua) or (hai cuc)) tre*.