Perhaps you should try some spelling variations:
ve triet » va trien, su triet
va triet » va thiet, va trien, cua triet
va danh » va dinh, va dan, va hanh
danh vi » hanh vi, dinh vi, danh di
cac luc » cau luc, coc luc, cac nuoc
hieu ve » hieu va, hieu van
ky lang » ky dang, ky tang, tay lang
ve cac » va cac, vien cac
luc va » duc va, tuc va, loc va
su xac » pu xac, su cac

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 lang) or (ky nang)) xa hoi. hieu ve cac luc va danh vi ((va triet) or (ve triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su xac ((ky lang) OR (ky nang)) xa hoi. hieu ve cac luc va danh vi ((va triet) OR (ve triet)).
• Adding a wildcard symbol may retrieve word variants: su xac ((ky lang) or (ky nang)) xa hoi. hieu ve cac luc va danh vi ((va triet) or (ve triet))*.