Perhaps you should try some spelling variations:
bach phap » sach phap, ban phap, cach pha
nang lai » nang tai, mang lai, nang cai
hieu van » hieu va, thien van, lieu va
lai hoi » dai hoi, lai hoa, lai roi
hieu ve » hieu va
cao duc » dao duc, cao suc, giao duc
va hanh » van hanh, va thanh, va danh
hanh ve » hanh vi, hanh va, hanh kem
cua tre » cua te, cuu tre, cua triet
ve cua » le cua, de cua, te cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu bach phap nang lai hoi. ((hieu ve) or (hieu van)) cao duc va hanh ve cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu bach phap nang lai hoi. ((hieu ve) OR (hieu van)) cao duc va hanh ve cua tre.
• Adding a wildcard symbol may retrieve word variants: vu bach phap nang lai hoi. ((hieu ve) or (hieu van)) cao duc va hanh ve cua tre*.