Search Bar – Is it possible to Show Products & Portfolio only?

Hi my client has asked that the search dropdown on their site shows Search for Products or Treatments, I have renamed the Portfolio section as Treatments using Loco Translate.
I notice there is an option to search for Products, Post, Treatments (Portfolio), Page, All post types

but when I use all post types it looks messy and says search for posts. I need it to say Search for Products or Treatments. Is this possible? Is there then a way to then block it searching for pages and posts? and just have it search only for Products and Treatments (Portfolio)?

Have included link to live website.

Many thanks

Gary