Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
van hanh » van thanh, ban hanh, van anh
hanh hai » thanh hai, nhanh hai, hang hai
ky danh » ky anh, ky dang
hieu ve » hieu va, hieu van
hai cua » thai cua, dai cua, hoi cua
su sac » su sach, su cac, su xac
sac ky » cac ky, sai ky
ca hoi » cau hoi, cua hoi, co hoi
ve cam » ve cham, ve cac, va cam
cam tu » cam thu, nam tu, dam tu
tu van » tu va

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sac ky danh ((ca hoi) or (xa hoi)). hieu ve cam tu van hanh hai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ky danh ((ca hoi) OR (xa hoi)). hieu ve cam tu van hanh hai cua triet.
• Adding a wildcard symbol may retrieve word variants: su sac ky danh ((ca hoi) or (xa hoi)). hieu ve cam tu van hanh hai cua triet*.