Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thanh lap » thanh san, thanh hai, thanh van
phan lap » phan dau
dao duc » giao duc, tao duoc
bang ky » dang ky, ban ky, tang ky
su bang » su dang, so bang, vu bang
hoa hoi » khoa hoi, hoa hoc, hoa doi
ky lang » ky nang, ky dang, ky tang
hieu ve » hieu va, hieu van
ve dao » de dao, va dao, ve bao
ha hoi » ha noi, xa hoi, va hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: su bang ky lang ((ha hoi) or (hoa hoi)). hieu ve dao duc va ((thanh lap) or (phan lap)) cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su bang ky lang ((ha hoi) OR (hoa hoi)). hieu ve dao duc va ((thanh lap) OR (phan lap)) cua triet.
• Adding a wildcard symbol may retrieve word variants: su bang ky lang ((ha hoi) or (hoa hoi)). hieu ve dao duc va ((thanh lap) or (phan lap)) cua triet*.