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, tu cach, vu sach
su sach » so sach, vu sach
te sach » toc sach
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 (su sach))) or (te sach)) 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 (su sach))) OR (te sach)) 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 (su sach))) or (te sach)) ky nang x hoi. hieu va nhan luc van hanh vi cua triet".
• Adding a wildcard symbol may retrieve word variants: ((((tu sach) OR (su sach))) or (te sach)) ky nang x hoi. hieu va nhan luc van hanh vi cua triet*.