Perhaps you should try some spelling variations:
va triet » va thiet, va trien, ve triet
van hanh » van thanh, ban hanh, van anh
nhan luc » nang luc
hanh su » hanh sua, hinh su, hanh tu
luc van » luoc van, luu van, duc van
hieu ca » hieu cac, hieu cua, hieu va
tu sach » thu sach, su sach, tu cach
te sach » toc sach
x hoi » xa hoi, o hoi, x ho
su va » su van, tu va
o hoc » co hoc, mo hoc, so hoc

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sach) or (te sach)) ky nang ((x hoi) or (o hoc)). hieu ca nhan luc van hanh su va triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (te sach)) ky nang ((x hoi) OR (o hoc)). hieu ca nhan luc van hanh su va triet.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (te sach)) ky nang ((x hoi) or (o hoc)). hieu ca nhan luc van hanh su va triet*.