Can I use CAN command to send two instructions at the same time in the terminal?

I want send two commands at the same time in my terminal .but I run command like this:
cansend can1 101#002800000200 && 102#002800000200 or cansend can1 101#002800000100&102#002800000200
$ cansend can1 101#002800000100&cansend can1 102#002800000200
all this command my external device just can accept first command,if I want my external device accept the above two commands,what should I do ?

Did you solve this issue?