Perhaps you should try some spelling variations:
ban hang » ngan hang
hieu ve » hieu va, hieu van
cac tuc » cac toc, cac tu, cac tac
va danh » va dinh, va dan, va hanh
su tien » su kien, su hien, tu tieng
su sac » su sach, su cac, su xac
sac ky » cac ky, sai ky
ve cac » va cac, vien cac
x hoi » xa hoi, o hoi, x ho
thiet » thieu

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: su sac ky nang x hoi. hieu ve cac tuc ((ban hang) OR (va danh)) vi ((su tien) OR (va thiet))~.
• Adding a wildcard symbol may retrieve word variants: su sac ky nang x hoi. hieu ve cac tuc ((ban hang) or (va danh)) vi ((su tien) or (va thiet))*.