Perhaps you should try some spelling variations:
nam thuc » nam thuoc, am thuc, nam thu
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
ky danh » ky anh, ky dang
danh xa » danh ca, dinh xa, canh xa
hieu le » hieu ve, hieu he, hieu ly
thuc va » thuc vat, thuc dan, thuc day
va hanh » van hanh, va thanh, va danh
le nam » ly nam, he nam, le na
bi va » bo va
vu va » vu van, tu va, su va

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ky danh xa hoi. hieu le nam thuc va hanh ((bi va) or (vu va)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky danh xa hoi. hieu le nam thuc va hanh ((bi va) OR (vu va)) triet.
• Adding a wildcard symbol may retrieve word variants: tu sach ky danh xa hoi. hieu le nam thuc va hanh ((bi va) or (vu va)) triet*.