Perhaps you should try some spelling variations:
hanh tri » thanh tri, hanh tai, hanh trinh
nhan luc » nang luc
cham luc » cham soc, cham cuu, chat lua
va hanh » van hanh, va thanh, va danh
sach ky » sac ky, sach y, sach kem
nang ma » tang ma, sang ma, nang cao
sach ty » sach y, sach tu, sach thu
hieu vu » hieu va, hieu ve, hieu su
ma hoi » mai hoi, xa hoi, ma hoa
thiet » thieu

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) OR (sach ty)) nang ma hoi. hieu vu ((cham luc) or (nhan luc)) va hanh tri va thiet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ky) OR (sach ty)) nang ma hoi. hieu vu ((cham luc) OR (nhan luc)) va hanh tri va thiet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach ky) OR (sach ty)) nang ma hoi. hieu vu ((cham luc) or (nhan luc)) va hanh tri va thiet".
• Adding a wildcard symbol may retrieve word variants: tu ((sach ky) OR (sach ty)) nang ma hoi. hieu vu ((cham luc) or (nhan luc)) va hanh tri va thiet*.