Perhaps you should try some spelling variations:
nam thuoc » nam thuc, nam thu, nha thuoc
thanh lay » thanh lap, thanh tay, thanh lam
cua triet » cua viet, su triet, va triet
bach van » bach dan, cach van, bach dang
van nang » van quang, van ban, van dong
va thanh » gia thanh, ban thanh, va tinh
hieu ve » hieu va, hieu van
cua tre » cua te, cuu tre, dua tren
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu bach van nang x hoi. hieu ve ((nam thuoc) or (am thuc)) va thanh lay ((cua tre) or (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu bach van nang x hoi. hieu ve ((nam thuoc) OR (am thuc)) va thanh lay ((cua tre) OR (cua triet)).
• Adding a wildcard symbol may retrieve word variants: vu bach van nang x hoi. hieu ve ((nam thuoc) or (am thuc)) va thanh lay ((cua tre) or (cua triet))*.