Perhaps you should try some spelling variations:
thanh moi » thanh loi, thanh hoa, thanh tai
thanh hai » thanh phan, thanh hoa, thanh san
nam thuoc » nam thuc, nam thu, nha thuoc
va triet » va thiet, va trien, ve triet
thuoc va » thuc va, thuoc ma, thuong va
ky lang » ky nang, ky dang, ky tang
hoa hoi » khoa hoi, hoa hoc, hoa doi
hieu va » lieu va, hieu qua
te san » te ban, ke san, tu san
san ky » sang ky, van ky, dan ky
ha hoi » ha noi, xa hoi, va hoi
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: te san ky lang ((ha hoi) OR (hoa hoi)). hieu va nam thuoc va ((thanh moi) or (thanh hai)) va triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te san ky lang ((ha hoi) OR (hoa hoi)). hieu va nam thuoc va ((thanh moi) OR (thanh hai)) va triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te san ky lang ((ha hoi) OR (hoa hoi)). hieu va nam thuoc va ((thanh moi) or (thanh hai)) va triet".
• Adding a wildcard symbol may retrieve word variants: te san ky lang ((ha hoi) OR (hoa hoi)). hieu va nam thuoc va ((thanh moi) or (thanh hai)) va triet*.