Recover Seed phrase, Private keys using Brainwallet and more

[MainIbem]

Your question is not very clear but in all your doings, never lose your seed phrase or allow someone have access to it, that's like the lock to the door of the money in your wallet which serves as a security in protecting your money losing it or giving someone access to it is like losing the your gate keys or giving criminals access to your house but in the case of the seed phrase, it's a tough nut to crack and you'll never have acess to your fund if your lose it.

[liasbaa]

Brainwellets is wallet is served as a memory or engine search for lost keys, that's it  has a way of storing BTC in one's mind by memorizing a seed phrase or private keys, private keys on the hand most websites support private keys.search in any format, decimal, hexadecimal, RAW, WIF and brainwellet. Is best instruments or tools in finding where private keys are located. The balance amount of each private keys is automatically verified. Wallets with a balance are colored green but wallets that have been used in the past but are now empty will turn yellow. Private keys is just numbers within the range of 1 and 2, they generated on the fly using the page number.
But my questions is if someone steals your wallet, and you have private keys or seed phrase, can stop the person from Accessing your funds?

By stealing your wallet, do you mean stealing the private key or seed phrase? If so, he will not sit still for a moment after stealing your wallet. He will steal all the assets in your wallet. If you have it stored with you, it is worthless and you will never get that asset back.

If for some reason your device is stolen, and if the private key or seed phrase is stored on that device then probably you have a chance to get that asset back or have no chance. After it is lost you can recover it again with the private key or seed phrase on another device. Recover the wallet and transfer the digital assets stored there to another wallet quickly because if the thief finds the seed phrase and security key, he will transfer your assets to his own wallet from there. If he is able to transfer these digital assets, you will never get them back.

[coinlary]

.........there is higher possibility of easily missing a word character ......

"Character" not "word", Fix that fo you.

so for private keys it's much better to write them down somewhere.

Not advisable to write them down, the risk of missing a character is also high and nit different to memorising. What about dealing with multiple private keys?

It's possible to have it written without error but then , why go through such tedious effort that could also lead to error of ommission or typo , when you can just easily print everyting out. 

There  are recommended printers to do that anyway