How can I add the multiselct function based on Bootstrap version 2.2.2?

Question

I am working with an old version of Bootstrap 2.2.2. Do not offer to update, the rest of the necessary advantages may fly off on other pages.

I tried the plugins Chosen and Bootstrap Multiselect, but it didn't help.

Chosen: https://harvesthq.github.io/chosen/

Bootstrap Multiselect: https://davidstutz.github.io/bootstrap-multiselect/