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
vai cua » dai cua, hai cua, lai cua
xa hanh » xa thanh, xa khanh, va hanh
tu cong » thu cong, te cong, tai cong
qua ca » qua cac, qua cua, qua cai
ca duc » cao duc, cua duc, ca dua
duc xa » duoc xa, tuc xa, duc va

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 cong) or (tu dong)) xa hoi. hieu qua ca 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 cong) OR (tu dong)) xa hoi. hieu qua ca duc xa hanh vai cua triet.
• Adding a wildcard symbol may retrieve word variants: ((te sach) or (toc sach)) ((tu cong) or (tu dong)) xa hoi. hieu qua ca duc xa hanh vai cua triet*.