Perhaps you should try some spelling variations:
nam thuoc » nam thuc, nam thu, nha thuoc
thuoc van » thuoc va, thuc van, thuoc ban
cua triet » cua viet, su triet, va triet
nang hoa » nang hoat, hang hoa, nang hoc
van hanh » van thanh, ban hanh, van anh
hanh vai » hanh vi, hanh va, hanh tai
te sach » toc sach
sach ky » sac ky, sach y, sach ty
hoa hoi » khoa hoi, hoa hoc, hoa doi
hieu ve » hieu va, hieu van
hieu he » hiem he, hieu le, hieu hien
vai cua » dai cua, hai cua, lai cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ky nang hoa hoi. ((hieu ve) or (hieu he)) nam thuoc van hanh vai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky nang hoa hoi. ((hieu ve) OR (hieu he)) nam thuoc van hanh vai cua triet.
• Adding a wildcard symbol may retrieve word variants: te sach ky nang hoa hoi. ((hieu ve) or (hieu he)) nam thuoc van hanh vai cua triet*.