Perhaps you should try some spelling variations:
thien van » thi van
cua triet » cua viet, su triet
van thanh » ban thanh, van tuan
va triet » va thiet, va trien, ve triet
thanh vi » hanh vi, thanh va, thanh ve
luc van » luoc van, luu van, duc van
nam luc » nang luc, nhan luc, nam thuc
nang co » nang cao, nang doc, nang noi
te sach » toc sach
co loi » co hoi
te sac » te cac, te san

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: ((te sac) OR (te sach)) ky nang co loi. thien van nam luc van thanh vi ((cua triet) OR (va triet))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sac) or (te sach)) ky nang co loi. thien van nam luc van thanh vi ((cua triet) OR (va triet))~".
• Adding a wildcard symbol may retrieve word variants: ((te sac) or (te sach)) ky nang co loi. thien van nam luc van thanh vi ((cua triet) OR (va triet))*.