Perhaps you should try some spelling variations:
duoc luan » nuoc luan, duoc luat, thuoc luan
luan benh » quan binh, cua benh, luan kinh
tay lang » tai lang, tay tang, tay quang
hieu van » hieu va, thien van, lieu va
lam duoc » nam duoc, luat duoc, lam thuoc
te sach » toc sach
van lam » van nam
benh ve » benh va, benh vien, benh viem
cuu tre » cua tre, cau tren, cau treo
y lang » o lang, _ lang, yen lang
ve cuu » ve cau, ve chu, ve 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) or (tay lang)) xa hoi. hieu van lam duoc luan benh ve cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((y lang) OR (tay lang)) xa hoi. hieu van lam duoc luan benh ve cuu tre.
• Adding a wildcard symbol may retrieve word variants: te sach ((y lang) or (tay lang)) xa hoi. hieu van lam duoc luan benh ve cuu tre*.