hi, any help please ..

I moved my btc into electrum wallet before the fork.

today I send my BTC out of it to my exchange,  it arrived.

I made an electroncach wallet on a different computer (malware virusfree)
I choose server bcc   478595
I export the private keys from my elctrum wallet
i choose stand alone wallet,  and import private keys.
a window open to imort them, i pate the 3 private keys from the 3 addresses I used in electrum
(at least I think, they where in green if I looked the details of my history transactions)
result 0 bcc
then I import the whole list (addresses and private keys)
result
0bcc
should be 13
What can I do, what did I do wrong pls

Thanks