Perhaps you should try some spelling variations:
thanh hai » thanh phan, thanh hoa, thanh san
thanh tai » thanh toan, doanh tai, thanh san
vu sach » vu bach, su sach, vu khach
cua tre » cua te, cuu tre, cua triet
sach ky » sac ky, sach y, sach ty
cao duc » dao duc, cao suc, tao duoc
hieu va » lieu va, hieu qua
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: vu sach ky nang x hoi. hieu va ((cao duc) or (giao duc)) ban ((thanh hai) or (thanh tai)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach ky nang x hoi. hieu va ((cao duc) OR (giao duc)) ban ((thanh hai) OR (thanh tai)) cua tre.
• Adding a wildcard symbol may retrieve word variants: vu sach ky nang x hoi. hieu va ((cao duc) or (giao duc)) ban ((thanh hai) or (thanh tai)) cua tre*.