Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
hanh vai » hanh vi, hanh va, hanh tai
te sach » toc sach
cao suc » cao su
vai cua » dai cua, hai cua, lai cua
xa hanh » xa thanh, xa khanh, va hanh
cao duc » dao duc, giao duc, tao duoc
dong ha » dong hoa, dong va, dong hoc
hieu va » lieu va, hieu qua
cua tre » cua te, cuu tre, cua triet

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) or (thuoc sach)) tu dong ha noi. hieu va ((cao duc) or (cao suc)) xa hanh vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (thuoc sach)) tu dong ha noi. hieu va ((cao duc) OR (cao suc)) xa hanh vai cua tre.
• Adding a wildcard symbol may retrieve word variants: ((te sach) or (thuoc sach)) tu dong ha noi. hieu va ((cao duc) or (cao suc)) xa hanh vai cua tre*.