Perhaps you should try some spelling variations:
lam thuoc » nam thuoc, am thuc, cay thuoc
cua triet » cua viet, su triet
thuoc va » thuc va, thuoc ma, thuong va
danh dan » danh dau, canh dan, dang dan
va triet » va thiet, va trien, ve triet
hieu van » thien van, lieu va, hieu ve
hieu va » lieu va, hieu qua
va danh » va dinh, va dan, va hanh
nang xa » nang x, lang xa, nang ma
sac ky » cac ky, sai ky
te sac » te sach, te cac, te san

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sac ky nang xa hoi. ((hieu van) or (hieu va)) lam thuoc va danh dan ((cua triet) or (va triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ky nang xa hoi. ((hieu van) OR (hieu va)) lam thuoc va danh dan ((cua triet) OR (va triet)).
• Adding a wildcard symbol may retrieve word variants: te sac ky nang xa hoi. ((hieu van) or (hieu va)) lam thuoc va danh dan ((cua triet) or (va triet))*.