Tag translation in archive page

Hi,

I have 2 languages.
Let us say I have a tag named TL1 and its translation TL2.

When I display the TL1 archive page, I would like to see the posts bearing TL1 but also those bearing TL2. It does not seem to work this way.

Is there a way to do so ?

Thanks.

https://wordpress.org/plugins/polylang/