Perhaps you should try some spelling variations:
cham luc » cham soc, cham cuu, chat lua
nhan luc » nang luc
van hanh » van thanh, ban hanh, van anh
hanh noi » ha noi, hanh vi, nang noi
dua tren » dung tren
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
cua te » cua tu
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: su sach ky nang x hoi. hieu qua ((cham luc) OR (nhan luc)) van hanh noi ((dua tren) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky nang x hoi. hieu qua ((cham luc) OR (nhan luc)) van hanh noi ((dua tren) OR (cua te))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky nang x hoi. hieu qua ((cham luc) OR (nhan luc)) van hanh noi ((dua tren) or (cua te))*".