Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thien van » thi van
nam thuoc » nam thu, nha thuoc, cay thuoc
nam thuc » am thuc, nam thu, nam tu
danh dai » danh dau, danh sai, vanh dai
danh di » danh du, xanh di, danh dien
nang o » nang co, nang ho, nang ro
sac ky » cac ky, sai ky
tu sac » tu sach, tu cac, tu san
o hoi » co hoi, o hoc, o hai

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sac ky nang o hoi. thien van ((nam thuc) or (nam thuoc)) va ((danh dai) OR (danh di)) cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky nang o hoi. thien van ((nam thuc) OR (nam thuoc)) va ((danh dai) OR (danh di)) cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky nang o hoi. thien van ((nam thuc) or (nam thuoc)) va ((danh dai) OR (danh di)) cua triet".
• Adding a wildcard symbol may retrieve word variants: tu sac ky nang o hoi. thien van ((nam thuc) or (nam thuoc)) va ((danh dai) OR (danh di)) cua triet*.