Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hanh dieu » han dieu, hinh dieu, hoang dieu
dieu cua » dieu tra
van hanh » van thanh, ban hanh, van anh
hieu van » hieu va, thien van, lieu va
hoa hoi » khoa hoi, hoa hoc, hoa doi
hieu ve » hieu va
thu van » thuc van, thuy van, tu van
cac thu » cach thuc, cac thoi
so sac » so sach, so dac
sac ky » cac ky, sai ky
ho hoi » hoc hoi, hoi hoi, co hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sac ky nang ((ho hoi) OR (hoa hoi)). ((hieu ve) or (hieu van)) cac thu van hanh dieu cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sac ky nang ((ho hoi) OR (hoa hoi)). ((hieu ve) OR (hieu van)) cac thu van hanh dieu cua triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sac ky nang ((ho hoi) OR (hoa hoi)). ((hieu ve) or (hieu van)) cac thu van hanh dieu cua triet*".