Perhaps you should try some spelling variations:
nhan luc » nang luc
ban hanh » ban hang
cham luc » cham soc, cham cuu, chat lua
va danh » va dinh, va dan, va hanh
cua tre » cua te, cuu tre, cua triet
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
cai ky » cao ky, cac ky, cam ky
di cua » dai cua, doi cua, de cua
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 nang xa hoi. hieu ve ((cham luc) OR (nhan luc)) ((ban hanh) or (va danh)) di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cai ky nang xa hoi. hieu ve ((cham luc) OR (nhan luc)) ((ban hanh) OR (va danh)) di cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu cai ky nang xa hoi. hieu ve ((cham luc) OR (nhan luc)) ((ban hanh) or (va danh)) di cua tre".
• Adding a wildcard symbol may retrieve word variants: tu cai ky nang xa hoi. hieu ve ((cham luc) OR (nhan luc)) ((ban hanh) or (va danh)) di cua tre*.