Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
nhan luc » nang luc
van hanh » van thanh, ban hanh, van anh
tu sach » thu sach, su sach, te sach
so sach » bo sach, co sach, hoc sach
so sanh » do sanh
hieu va » lieu va, hieu qua
va nhan » van nhan, ca nhan, va phan
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.

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sach) or (((so sach) OR (so sanh)))) ky nang x hoi. hieu va nhan luc van hanh vi 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 x hoi. hieu va nhan luc van hanh vi cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (((so sach) OR (so sanh)))) ky nang x hoi. hieu va nhan luc van hanh vi cua triet".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (((so sach) OR (so sanh)))) ky nang x hoi. hieu va nhan luc van hanh vi cua triet*.