Perhaps you should try some spelling variations:
nam thuoc » nam thuc, nam thu, nha thuoc
thuoc ban » thuoc tan, thuoc dang, thu ban
ban thanh » ban hanh, ban hang
thanh hai » thanh phan, thanh hoa, thanh san
va trien » va truyen, va thiet, va tuyen
ky lang » ky nang, ky dang, ky tang
lang ha » long ha
hieu va » hieu qua
te san » te ban, ke san, tu san
san ky » sang ky, van ky, dan ky
ha hoi » hoa hoi, ha noi, xa hoi
hai va » hai van, thai va, hoi va

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

• Performing a fuzzy search may retrieve terms with similar spellings: te san ky lang ha hoi. ((hieu va) or (lieu va)) nam thuoc ban thanh hai va trien~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te san ky lang ha hoi. ((hieu va) OR (lieu va)) nam thuoc ban thanh hai va trien.
• Adding a wildcard symbol may retrieve word variants: te san ky lang ha hoi. ((hieu va) or (lieu va)) nam thuoc ban thanh hai va trien*.