Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
cham duc » pham duc, pham duy, phan duc
van hanh » van thanh, van anh, van ban
ban hanh » ban hang
tu sach » thu sach, su sach, te sach
sach tu » sach thu, cach tu, sach ty
hieu ve » hieu va, hieu van
tu nang » tru nang, tu nong, tu nano
di cua » dai cua, doi cua, de cua
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach tu nang x hoi. hieu ve ((cham duc) or (cham soc)) ((ban hanh) or (van hanh)) di cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach tu nang x hoi. hieu ve ((cham duc) OR (cham soc)) ((ban hanh) OR (van hanh)) di cua triet.
• Adding a wildcard symbol may retrieve word variants: tu sach tu nang x hoi. hieu ve ((cham duc) or (cham soc)) ((ban hanh) or (van hanh)) di cua triet*.