Perhaps you should try some spelling variations:
thanh dat » thanh san, thanh hai, thanh van
va thanh » gia thanh, ban thanh, va tinh
te sach » toc sach
cao duc » cao suc, giao duc, tao duoc
dat cua » dai cua, day cua, mat cua
dao duc » giao duc, tao duoc
cua tre » cua te, cuu tre, cua triet
hieu ve » hieu va, hieu van
y nang » ky nang, ly nang, v nang
ma hoi » mai hoi, xa hoi, me hoi

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 y nang ((ma hoi) or (ma hoa)). hieu ve ((cao duc) OR (dao duc)) va thanh dat cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y nang ((ma hoi) OR (ma hoa)). hieu ve ((cao duc) OR (dao duc)) va thanh dat cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y nang ((ma hoi) or (ma hoa)). hieu ve ((cao duc) OR (dao duc)) va thanh dat cua tre*".