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