Perhaps you should try some spelling variations:
qua nhan » cua nhan, qua nhat, qua phan
hanh doi » thanh doi, hanh noi, hang doi
nhan luc » nang luc
cua tre » cuu tre, cua triet, dua tren
va hanh » van hanh, va thanh, va danh
su sach » so sach, vu sach
ly nang » ky nang, ly hang, ly vang
y nang » ky nang, v nang, may nang
ma hoi » mai hoi, xa hoi, ma hoa
luc va » duc va, tuc va, loc va
cua te » cua tu

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) OR (ly nang)) ma hoi. hieu qua nhan luc va hanh doi ((cua tre) OR (cua te))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ((y nang) or (ly nang)) ma hoi. hieu qua nhan luc va hanh doi ((cua tre) OR (cua te))~".
• Adding a wildcard symbol may retrieve word variants: su sach ((y nang) or (ly nang)) ma hoi. hieu qua nhan luc va hanh doi ((cua tre) OR (cua te))*.