Perhaps you should try some spelling variations:
cham luc » nhan luc, cham cuu, chat lua
danh doi » danh di, thanh doi, dung doi
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
va danh » va dinh, va dan, va hanh
doi cuu » doi cua, doi cuoc
cuu tre » cua tre, cau tren, cau treo
x hoi » xa hoi, o hoi, x ho

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 ky nang x hoi. hieu qua ((cham luc) OR (cham soc)) va danh doi cuu tre~.
• Adding a wildcard symbol may retrieve word variants: su sach ky nang x hoi. hieu qua ((cham luc) or (cham soc)) va danh doi cuu tre*.