Hello,
Go to Products > categories > edit category > in the edit category page to change the category title.
Navigate to the Header builder, -> configure the search element.
And Enable this option to show search results from the page.
https://ibb.co/dm0CVnY
If there are not enough. Try to use the loco translate plugin to change the text.
You can also watch the video in our detailed documentation in the following link: https://www.youtube.com/watch?v=D3NsDdMzsls
Best Regards.