Perhaps you should try some spelling variations:
nhan luc » nang luc
ban hanh » ban hang
cham luc » cham soc, cham cuu, chat lua
va hanh » van hanh, va thanh, va danh
cua tre » cua te, cuu tre, cua triet
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
can ky » van ky, dan ky, ban ky
di cua » dai cua, doi cua, de cua
tu can » tu ban, tu cac, thu canh

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

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