Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
cua triet » cua viet, su triet, va triet
van nhan » van phan, danh nhan, van khanh
thanh vi » hanh vi, thanh va, thanh ve
tu sach » thu sach, su sach, tu cach
te sach » toc sach
va nhan » ca nhan, va phan, va nha
luc van » luoc van, luu van, duc van
vi cua » vai cua, di cua
x hoi » xa hoi, o hoi, x ho

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (te sach)) ky nang x hoi. lieu ((va nhan) OR (van nhan)) luc van thanh vi cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (te sach)) ky nang x hoi. lieu ((va nhan) OR (van nhan)) luc van thanh vi cua triet~".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (te sach)) ky nang x hoi. lieu ((va nhan) OR (van nhan)) luc van thanh vi cua triet*.