Perhaps you should try some spelling variations:
hoc sach » hoc sinh, hoc cac, hoc anh
hieu van » hieu va, thien van, lieu va
van nhan » van phan, van thanh, danh nhan
nhan luc » nang luc
van hanh » van thanh, ban hanh, van anh
va triet » va thiet, va trien, ve triet
su triet » su viet, ve triet
luc van » luoc van, luu van, duc van
su tien » su kien, su hien, tu tieng
y nang » ky nang, ly nang, v nang
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: hoc sach y nang x hoi. hieu van nhan luc van hanh vi ((va triet) or (((su triet) or (su tien))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc sach y nang x hoi. hieu van nhan luc van hanh vi ((va triet) OR (((su triet) OR (su tien)))).
• Adding a wildcard symbol may retrieve word variants: hoc sach y nang x hoi. hieu van nhan luc van hanh vi ((va triet) or (((su triet) or (su tien))))*.