Perhaps you should try some spelling variations:
cua triet » cua viet, va triet
su triet » su viet, su tien, ve triet
ban hang » ngan hang
soc ban » hoc ban, coc ban, so ban
hang vi » hang va, hanh vi, hang di
ve cham » va cham, ve chat, vu cham
hieu ve » hieu va, hieu van
mai hoi » mai khoi, dai hoi, lai hoi
sac ky » cac ky, sai ky
tu sac » tu sach, tu cac, tu san

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

• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky nang ((xa hoi) OR (mai hoi)). hieu ve cham soc ban hang vi ((cua triet) OR (su triet))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky nang ((xa hoi) or (mai hoi)). hieu ve cham soc ban hang vi ((cua triet) OR (su triet))~".
• Adding a wildcard symbol may retrieve word variants: tu sac ky nang ((xa hoi) or (mai hoi)). hieu ve cham soc ban hang vi ((cua triet) OR (su triet))*.