Help with Listbox match copy paste

I need help. Currrently you click the command button and an input box pops up and asks you to put in one number so that it can search for it, find the matches and paste them into the "search" worksheet. You will find a multiselect ListBox in the mainsheet. I would like to be able to search for mulitple numbers with the listbox at the same time, find all the matches for all the mulitples and paste them into the "search" worksheet. Any help that can be provided would be greatly appreciated. I have attached my example file.