The stockpile dialog should have a field to type in what you're looking for

[Kerbin Dallas Multipass]

With auto complete please:)

I don't want pemmican in my walk-in freezer.

I'd like to have a field to type in where i can type "pem" and it highlights pemmican. And I uncheck the checkbox. Done.

Digging through the expanding menus to find certain things can be tiresome.

[BlackSmokeDMax]

Storage Search mod does just that, but yeah seems like something that should be in vanilla.