Perhaps you should try some spelling variations:
nhan luc » nang luc
su triet » su tien, ve triet
hanh ve » hanh va, hanh kem
sach ly » sach y, sach lo, sach ty
su sach » so sach, vu sach
luc van » luoc van, luu van, duc van
su nhan » cu nhan, tu nhan, su nha
hieu su » hieu sau, tieu su, hieu so
su viet » so viet
ma hoi » mai hoi, xa hoi, ma hoa
san ma » sang ma, ban ma, san va

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 ly san ma hoi. hieu su nhan luc van ((hanh ve) or (hanh vi)) ((su triet) or (su viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ly san ma hoi. hieu su nhan luc van ((hanh ve) OR (hanh vi)) ((su triet) OR (su viet)).
• Adding a wildcard symbol may retrieve word variants: su sach ly san ma hoi. hieu su nhan luc van ((hanh ve) or (hanh vi)) ((su triet) or (su viet))*.