Perhaps you should try some spelling variations:
cham luc » cham soc, nhan luc, cham cuu
dia danh » dia ban, gia dinh
lang xa » lang ha, dang xay, lang van
va hanh » van hanh, va thanh, va danh
ky lang » ky nang, ky dang, ky tang
hieu va » lieu va, hieu qua
hieu ve » hieu van
cua tre » cua te, cuu tre, cua triet
di cua » dai cua, doi cua, de cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu cac ky lang xa hoi. ((hieu ve) or (hieu va)) cham luc ((va hanh) or (dia danh)) di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cac ky lang xa hoi. ((hieu ve) OR (hieu va)) cham luc ((va hanh) OR (dia danh)) di cua tre.
• Adding a wildcard symbol may retrieve word variants: tu cac ky lang xa hoi. ((hieu ve) or (hieu va)) cham luc ((va hanh) or (dia danh)) di cua tre*.