Perhaps you should try some spelling variations:
cham luc » cham soc, cham cuu, chat lua
nhan luc » nang luc
danh tri » dinh tri, thanh tri, danh thin
lang xa » lang ha, dang xay, lang van
va danh » va dinh, va dan, va hanh
cua tre » cua te, cuu tre, cua triet
bai ky » sai ky, bac ky, dai ky
ban ky » van ky, dan ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: te ((bai ky) OR (ban ky)) lang xa hoi. hieu qua ((cham luc) or (nhan luc)) va danh tri cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((bai ky) OR (ban ky)) lang xa hoi. hieu qua ((cham luc) OR (nhan luc)) va danh tri cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((bai ky) OR (ban ky)) lang xa hoi. hieu qua ((cham luc) or (nhan luc)) va danh tri cua tre".
• Adding a wildcard symbol may retrieve word variants: te ((bai ky) OR (ban ky)) lang xa hoi. hieu qua ((cham luc) or (nhan luc)) va danh tri cua tre*.