No one that can help me?
I tried copying wallet.dat to the Multibit files but it did not worked.
You might want to calm down a bit, just because you spam posts every 10 minutes does not mean you will get an answer sooner.
#1 multibit hd does not allow you to import keys, you need a different wallet or a wallet inbetween that allows you to send your funds to multibit hd.
#2 I suggest you use electrum for that. You can find it here ->
https://electrum.org/#3 Have you exported your private key from bitcoin core yet?