Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
cham duc » pham duc, pham duy, phan duc
hanh hoi » hanh thoi, hanh noi, hanh hoa
van hanh » van thanh, ban hanh, van anh
hoi cua » hoi chuc
sach ty » sach tu, sach thu, xach tay
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma

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 ty) or (sach y)) nang xa hoi. hieu ve ((cham duc) OR (cham soc)) van hanh hoi cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ty) OR (sach y)) nang xa hoi. hieu ve ((cham duc) OR (cham soc)) van hanh hoi cua triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach ty) or (sach y)) nang xa hoi. hieu ve ((cham duc) OR (cham soc)) van hanh hoi cua triet*".