Perhaps you should try some spelling variations:
lam thuoc » nam thuoc, am thuc, cay thuoc
hieu van » thien van, lieu va, hieu ve
thuoc ma » hoc ma, duoc ma
doan dan » doan van, doan dau, doan dien
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
hieu va » lieu va, hieu qua
ma doan » ma dan, tap doan, va doanh
dan cua » dan ca, ban cua, dai cua
cua tre » cua te, cuu tre, cua triet
te cac » tu cac, ve cac, te cao

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

• Performing a fuzzy search may retrieve terms with similar spellings: te cac ky lang xa hoi. ((hieu van) or (hieu va)) lam thuoc ma doan dan cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te cac ky lang xa hoi. ((hieu van) OR (hieu va)) lam thuoc ma doan dan cua tre.
• Adding a wildcard symbol may retrieve word variants: te cac ky lang xa hoi. ((hieu van) or (hieu va)) lam thuoc ma doan dan cua tre*.