Perhaps you should try some spelling variations:
nam thuoc » nam thu, nha thuoc, cay thuoc
cua triet » cua viet, su triet, va triet
nam thuc » am thuc, nam thu, nam tu
danh vi » hanh vi, dinh vi, danh di
lang ha » long ha
va danh » va dinh, va dan, va hanh
hieu le » hieu ve, hieu he, hieu ly
vi cua » vai cua, di cua
sac ky » sai ky
ha hoi » hoa hoi, ha noi, xa hoi

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

• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sac ky) OR (cac ky)) lang ha hoi. hieu le ((nam thuoc) OR (nam thuc)) va danh vi cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sac ky) or (cac ky)) lang ha hoi. hieu le ((nam thuoc) OR (nam thuc)) va danh vi cua triet~".
• Adding a wildcard symbol may retrieve word variants: tu ((sac ky) or (cac ky)) lang ha hoi. hieu le ((nam thuoc) OR (nam thuc)) va danh vi cua triet*.