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

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