Hello,
Theme Options > Header builder > Search > All Categories Text
I’ve installed the Loco translate plugin – https://xstore.helpscoutdocs.com/article/30-base-theme-translation , created a translation for the Core plugin, synchronized the translation of the theme and WooCommerce. Clear cache and check – https://i.gyazo.com/381e06e53b164a693e708c33ac4794aa.png
Regards