SharePoint Online variations - Search inside variation only

Hello,

If I use SharePoint Online variations for multi-language Intranet, will I be able to configure search to only search inside the variation?

I want English users only to search english content (in the /en variation site), Portuguese users to search Portuguese content  (in the /pt variation site), etc.

Also, can you confirm that if we create the variation sites in the language we want, all content in search results page (labels, refiner labels, etc) will appear in that language?

Thanks,

Miguel