I want this feature as badly as you do. In my case, to filter out any smart TVs when shopping for a replacement television. I recognize though, from working in

I want this feature as badly as you do. In my case, to filter out any smart TVs when shopping for a replacement television. I recognize though, from working in retail and from looking at the front and back ends of the human process (and the front and back ends of POS, ERM, and other software that manages a business' inventory)... That the world itself will probably never be well ordered enough to support reliable logical operators with accurate results when searching most inventory out there. You have to nail the software that developers have to write to understand the inventory it's keeping well enough for those operators to work. You have to nail the human process of keeping the inventory itself (and any tagging/categorization in the software) manually up to date. You have to deal with the malincentives of all the people selling product on to you at the distributor level, and how that affects the information they provide with the product. I wish for consistent, comprehensive logical operators in product search but I just don't see it happening. I think it's an example of a 'wicked problem'[1], and one that someone could probably make a killing solving. [1] https://en.wikipedia.org/wiki/Wicked_problem https://en.wikipedia.org/wiki/Wicked_problem