Perhaps you should try some spelling variations:
ve triet » va trien, su triet
cao hoi » cau hoi, co hoi, cao hoc
hieu ve » hieu va, hieu van
ve chao » ve chat, ve cham, ve cho
va hang » van hang, va lang, va hanh
va nang » van nang, da nang, cam nang
dien ve » dien va, dien he, dien vu
su sai » su tai, su hai, su dai
sai ky » sac ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sai ky nang cao hoi. hieu ve chao xu ((va hang) or (va nang)) dien ve triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sai ky nang cao hoi. hieu ve chao xu ((va hang) OR (va nang)) dien ve triet.
• Adding a wildcard symbol may retrieve word variants: su sai ky nang cao hoi. hieu ve chao xu ((va hang) or (va nang)) dien ve triet*.