Perhaps you should try some spelling variations:
cham luc » cham soc, cham cuu, chat lua
nhan luc » nang luc
hanh tai » thanh tai, hang tai, han tai
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
va hanh » van hanh, va thanh, va danh
tai cua » thai cua, tai cuc, tri cua
cua tre » cua te, cuu tre, cua triet
te bac » ten bac, te bao, te ban
bac ky » cac ky, ban ky, sac 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 bac ky lang xa hoi. hieu qua ((cham luc) OR (nhan luc)) va hanh tai cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te bac ky lang xa hoi. hieu qua ((cham luc) OR (nhan luc)) va hanh tai cua tre".
• Adding a wildcard symbol may retrieve word variants: te bac ky lang xa hoi. hieu qua ((cham luc) OR (nhan luc)) va hanh tai cua tre*.