Perhaps you should try some spelling variations:
chet triet » chuyen triet, thuyet triet
chat triet » phat trien, chat thien, cua triet
ban hang » ngan hang
hang ly » huong ly
cao cua » ca cua, co cua, cau cua
su sach » so sach, vu sach
te sach » toc sach
hieu va » lieu va, hieu qua
va cao » va cac, va co, va dao
nang o » nang co, nang ho, nang ro
o hoi » co hoi, o hoc, o hai

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((su sach) or (te sach)) ky nang o hoi. hieu va cao cua ban hang ly ((chat triet) OR (chet triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (te sach)) ky nang o hoi. hieu va cao cua ban hang ly ((chat triet) OR (chet triet))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) or (te sach)) ky nang o hoi. hieu va cao cua ban hang ly ((chat triet) OR (chet triet))*".