Perhaps you should try some spelling variations:
nam thuoc » nam thuc, nam thu, nha thuoc
thuoc va » thuc va, thuoc ma, thuong va
cuu tre » cua tre, cau tren, cau treo
dan tai » van tai, dan thi, han tai
lang ha » long ha
hieu va » lieu va, hieu qua
dan va » doan va, dan ca, ban va
san ky » sang ky, van ky, ban ky
ha hoi » hoa hoi, ha noi, xa 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: toc ((san ky) or (dan ky)) lang ha hoi. hieu va nam thuoc va ((dan va) or (dan tai)) cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc ((san ky) OR (dan ky)) lang ha hoi. hieu va nam thuoc va ((dan va) OR (dan tai)) cuu tre.
• Adding a wildcard symbol may retrieve word variants: toc ((san ky) or (dan ky)) lang ha hoi. hieu va nam thuoc va ((dan va) or (dan tai)) cuu tre*.