Perhaps you should try some spelling variations:
thien van » thi van
lam thuoc » nam thuoc, am thuc, cay thuoc
thuoc bat » thuoc ban, thuoc bao, thuoc bang
lang van » dang van, tang van, hoang van
bat benh » ba benh, bat binh, bach benh
te sach » toc sach
lang ha » long ha
van lam » van nam
benh vi » benh va, benh ve, benh li
cua tre » cua te, cuu tre, cua triet
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach y ((lang van) or (lang ha)) hoi. thien van lam thuoc bat benh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y ((lang van) OR (lang ha)) hoi. thien van lam thuoc bat benh vi cua tre.
• Adding a wildcard symbol may retrieve word variants: te sach y ((lang van) or (lang ha)) hoi. thien van lam thuoc bat benh vi cua tre*.