Perhaps you should try some spelling variations:
nhan luc » nang luc
su triet » su viet, ve triet
van hanh » van thanh, ban hanh, van anh
luc van » luoc van, luu van, duc van
hanh ve » hanh vi, hanh va, hanh kem
su sach » so sach, vu sach
sach vu » sach va, sach tu, sach uu
cu nhan » ca nhan
hieu cu » hieu cua, hieu ca, hieu su
nang ma » tang ma, sang ma, nang cao
vu nang » vuc nang, va nang, vu dang
su tien » su kien, su hien, tu tieng
ma hoi » mai hoi, xa hoi, ma hoa

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: su sach vu nang ma hoi. hieu cu nhan luc van hanh ve ((su triet) OR (su tien))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach vu nang ma hoi. hieu cu nhan luc van hanh ve ((su triet) OR (su tien))".
• Adding a wildcard symbol may retrieve word variants: su sach vu nang ma hoi. hieu cu nhan luc van hanh ve ((su triet) OR (su tien))*.