Perhaps you should try some spelling variations:
cham luc » cham soc, nhan luc, cham cuu
su sach » so sach, vu sach
hieu va » lieu va, hieu qua
va cham » va chat, va tham
va hanh » van hanh, va thanh, va danh
tai cuu » tai cuc, thai cua
tai cua » thai cua, tai cuc, tri cua
y nang » ky nang, ly nang, v nang
luc va » duc va, tuc va, loc va
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 y nang x hoi. hieu va cham luc va hanh ((((tai cuu) OR (tai cua))) or (tai buu)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y nang x hoi. hieu va cham luc va hanh ((((tai cuu) OR (tai cua))) OR (tai buu)) tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach y nang x hoi. hieu va cham luc va hanh ((((tai cuu) OR (tai cua))) or (tai buu)) tre*".