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

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 sach ky nang ((xa hoi) OR (mai hoi)). hieu ve cham soc ban hang vi cua triet~.
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang ((xa hoi) or (mai hoi)). hieu ve cham soc ban hang vi cua triet*.