Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
nam thuc » nam thuoc, am thuc, nam thu
va danh » va dinh, va dan, va hanh
hoi hoi » hoi hoc, hoc hoi, hoi doi
hieu ve » hieu va, hieu van
de cua » le cua, te cua, dieu cua
va anh » van anh, va hanh, va banh
su xac » pu xac, su cac
xac ky » cac ky, sac ky, bac ky
ho hoi » hoc hoi, hoa hoi, co hoi
ve nam » he nam, va nam, le nam

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

• Performing a fuzzy search may retrieve terms with similar spellings: su xac ky nang ((ho hoi) or (hoi hoi)). hieu ve nam thuc ((va anh) OR (va danh)) de cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su xac ky nang ((ho hoi) OR (hoi hoi)). hieu ve nam thuc ((va anh) OR (va danh)) de cua triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su xac ky nang ((ho hoi) or (hoi hoi)). hieu ve nam thuc ((va anh) OR (va danh)) de cua triet*".