Perhaps you should try some spelling variations:
cham luc » cham soc, nhan luc, cham cuu
dia danh » dia ban, gia dinh
ky tang » ky dang, kho tang, ky trong
hieu tu » chieu tu, hieu tuc, hien tu
tu cham » toc cham, thi cham
va danh » va dinh, va dan, va hanh
cua tre » cua te, cuu tre, cua triet
tu cai » tu cac, tu can, tu bai

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

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