Perhaps you should try some spelling variations:
cham luc » cham soc, nhan luc, cham cuu
nang doc » nang luc
ban hanh » ban hang
van hanh » van thanh, van anh, van ban
tu sach » thu sach, su sach, te sach
sach tu » sach thu, cach tu, sach ty
va cham » va chat, va tham
hieu va » lieu va, hieu qua
doc hoi » duoc hoi, hoc hoi, doc hai
tu nang » tru nang, tu nong, tu nano
di cua » doi cua, de cua, do cua

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 tu nang doc hoi. hieu va cham luc ((van hanh) or (ban hanh)) ((di cua) OR (dai cua)) te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach tu nang doc hoi. hieu va cham luc ((van hanh) OR (ban hanh)) ((di cua) OR (dai cua)) te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach tu nang doc hoi. hieu va cham luc ((van hanh) or (ban hanh)) ((di cua) OR (dai cua)) te".
• Adding a wildcard symbol may retrieve word variants: tu sach tu nang doc hoi. hieu va cham luc ((van hanh) or (ban hanh)) ((di cua) OR (dai cua)) te*.