Perhaps you should try some spelling variations:
qua nhan » cua nhan, qua nhat, qua phan
nhan luc » nang luc
hoi cua » hoi chuc
doi cua » dai cua
va hanh » van hanh, va thanh, va danh
su sach » so sach, vu sach
mai hoi » mai khoi, dai hoi, lai hoi
y nang » ky nang, ly nang, v nang
luc va » duc va, tuc va, loc va
ma hoi » xa hoi, ma hoa, me hoi

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y nang ((ma hoi) OR (mai hoi)). hieu qua nhan luc va hanh ((doi cua) OR (hoi cua)) tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach y nang ((ma hoi) or (mai hoi)). hieu qua nhan luc va hanh ((doi cua) OR (hoi cua)) tre~".
• Adding a wildcard symbol may retrieve word variants: su sach y nang ((ma hoi) or (mai hoi)). hieu qua nhan luc va hanh ((doi cua) OR (hoi cua)) tre*.