Perhaps you should try some spelling variations:
nam thuoc » nam thuc, nam thu, nha thuoc
cua triet » cua viet, su triet, va triet
thuoc va » thuc va, thuoc ma, thuong va
hieu he » hieu ve, hiem he, hieu le
va hanh » van hanh, va thanh, va danh
long ha » cong ha, dong hoa, cong hoa
dong ha » dong hoa, dong va, dong hoc
vi cua » vai cua, di cua
he nam » ha nam, nghe nam
sac ky » sai ky

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)) ((long ha) OR (dong ha)) hoi. hieu he nam thuoc va hanh vi cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sac ky) or (cac ky)) ((long ha) OR (dong ha)) hoi. hieu he nam thuoc va hanh vi cua triet~".
• Adding a wildcard symbol may retrieve word variants: tu ((sac ky) or (cac ky)) ((long ha) OR (dong ha)) hoi. hieu he nam thuoc va hanh vi cua triet*.