Perhaps you should try some spelling variations:
nam thuoc » nam thuc, nam thu, nha thuoc
dam thuc » am thuc, dan thuc, nam thuc
hanh van » thanh van, khanh van, hanh va
su triet » su viet, su tien, ve triet
su sach » so sach, vu sach
cao hoi » cau hoi, co hoi, cao hoc
va hanh » van hanh, va thanh, va danh
y nang » ky nang, ly nang, v nang
van su » dan su

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach y nang cao hoi. lieu va ((((dam thuc) or (nam thuoc))) or (cam xuc)) va hanh van su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y nang cao hoi. lieu va ((((dam thuc) OR (nam thuoc))) OR (cam xuc)) va hanh van su triet.
• Adding a wildcard symbol may retrieve word variants: su sach y nang cao hoi. lieu va ((((dam thuc) or (nam thuoc))) or (cam xuc)) va hanh van su triet*.