Perhaps you should try some spelling variations:
qua nhan » cua nhan, qua nhat, qua phan
nhan luc » nang luc
ban hanh » ban hang
va triet » va thiet, va trien, ve triet
su triet » su viet, su tien, ve triet
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
luc ban » duc ban, cuc ban, luc bat

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 ky nang x ho. hieu qua nhan luc ban hanh vi ((va triet) or (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang x ho. hieu qua nhan luc ban hanh vi ((va triet) OR (su triet)).
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang x ho. hieu qua nhan luc ban hanh vi ((va triet) or (su triet))*.