Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
cua triet » cua viet, su triet, va triet
toc sach » hoc sach, doc sach, thuoc sach
cap nuoc » dat nuoc
nuoc ban » nuoc san, quoc ban, buoc ban
thanh di » thanh doi, thanh de, thanh do
hieu ve » hieu va, hieu van
nang o » nang co, nang ho, nang ro
ve cap » ve cac, le cap, ve cai
di cua » dai cua, doi cua, de cua
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: ((te sach) or (toc sach)) ky nang o hoi. hieu ve cap nuoc ban thanh di cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (toc sach)) ky nang o hoi. hieu ve cap nuoc ban thanh di cua triet.
• Adding a wildcard symbol may retrieve word variants: ((te sach) or (toc sach)) ky nang o hoi. hieu ve cap nuoc ban thanh di cua triet*.