Perhaps you should try some spelling variations:
cua triet » cua viet, su triet
va triet » va thiet, va trien, ve triet
qua nhan » cua nhan, qua nhat, qua phan
nhan luc » nang luc
te sach » toc sach
luc van » luoc van, luu van, duc van
van anh » van thanh, tuan anh, van minh
tu sach » thu sach, su sach, tu cach
anh ve » hanh ve, anh va, anh viet
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 (te sach)) ky nang x hoi. hieu qua nhan luc van anh ve ((cua triet) OR (va triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (te sach)) ky nang x hoi. hieu qua nhan luc van anh ve ((cua triet) OR (va triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (te sach)) ky nang x hoi. hieu qua nhan luc van anh ve ((cua triet) OR (va triet))".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (te sach)) ky nang x hoi. hieu qua nhan luc van anh ve ((cua triet) OR (va triet))*.