Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
ban hang » ngan hang
te sach » toc sach
hieu ve » hieu va, hieu van
hai cua » thai cua, dai cua, hoi cua
y nang » ky nang, ly nang, v nang
ve bac » ve bao, ve cac, ve ban
x hoi » xa hoi, o hoi, x ho

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: te sach y nang x hoi. hieu ve bac bo ((ban hanh) OR (ban hang)) hai cua triet~.
• Adding a wildcard symbol may retrieve word variants: te sach y nang x hoi. hieu ve bac bo ((ban hanh) or (ban hang)) hai cua triet*.