Perhaps you should try some spelling variations:
doanh dan » doanh ban, doanh van, doanh dao
lam thuoc » nam thuoc, am thuc, cay thuoc
hieu van » thien van, lieu va, hieu ve
thuoc va » thuc va, thuoc ma, thuong va
va doanh » van doanh, vay doanh, va danh
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
hieu va » lieu va, hieu qua
dan cua » dan ca, ban cua, dai cua
cua tre » cua te, cuu tre, cua triet
te sac » te sach, te cac, te san
sac ky » cac ky, sai ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sac ky lang xa hoi. ((hieu van) OR (hieu va)) lam thuoc va doanh dan cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sac ky lang xa hoi. ((hieu van) OR (hieu va)) lam thuoc va doanh dan cua tre".
• Adding a wildcard symbol may retrieve word variants: te sac ky lang xa hoi. ((hieu van) OR (hieu va)) lam thuoc va doanh dan cua tre*.