Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
nhan luc » nang luc
hanh vai » hanh vi, hanh va, hanh tai
van hanh » van thanh, ban hanh, van anh
hieu va » lieu va, hieu qua
va nhan » van nhan, ca nhan, va phan
so sanh » do sanh
luc van » luoc van, luu van, duc van
so sach » bo sach, co sach, hoc sach
vai cua » dai cua, hai cua, lai cua
tu sach » thu sach, su sach, te sach
nang o » nang co, nang ho, nang ro
o hoi » co hoi, o hoc, o hai

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 (((so sach) or (so sanh)))) ky nang o hoi. hieu va nhan luc van hanh vai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (((so sach) OR (so sanh)))) ky nang o hoi. hieu va nhan luc van hanh vai cua triet.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (((so sach) or (so sanh)))) ky nang o hoi. hieu va nhan luc van hanh vai cua triet*.