Perhaps you should try some spelling variations:
cham luc » cham soc, nhan luc, cham cuu
tu sach » thu sach, su sach, te sach
va cham » va chat, va tham
va hanh » van hanh, va thanh, va danh
y nang » ky nang, ly nang, v nang
luc va » duc va, tuc va, loc va
da cau » dat cau
va cau » van cau, va cac, va dau
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: tu sach y nang x hoi. lieu va cham luc va hanh ((da cau) or (va cau)) tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y nang x hoi. lieu va cham luc va hanh ((da cau) OR (va cau)) tren.
• Adding a wildcard symbol may retrieve word variants: tu sach y nang x hoi. lieu va cham luc va hanh ((da cau) or (va cau)) tren*.