Perhaps you should try some spelling variations:
nang tai » hang tai, tang tai, sang tai
qua nhan » cua nhan, qua nhat, qua phan
nhan luc » nang luc
van hanh » van thanh, ban hanh, van anh
hanh doi » thanh doi, hanh noi, hang doi
so sach » so sanh, bo sach, co sach
vu sach » vu bach, su sach, vu khach
tai hoi » tai khoi, dai hoi, tai hai
luc van » luoc van, luu van, duc van
doi cua » dai cua, hoi cua
cua tre » cua te, cuu tre, cua triet
y nang » ky nang, ly nang, v nang

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: ((so sach) OR (vu sach)) y nang tai hoi. hieu qua nhan luc van hanh doi cua tre~.
• Adding a wildcard symbol may retrieve word variants: ((so sach) or (vu sach)) y nang tai hoi. hieu qua nhan luc van hanh doi cua tre*.