It's on purpose, like the omission of negative search terms, something almost every single search engine offers. Udi Manber was the relevant VP at Amazon and he

It's on purpose, like the omission of negative search terms, something almost every single search engine offers. Udi Manber was the relevant VP at Amazon and he literally wrote the book on search engines. I sometimes just switch to DuckDuckGo to search Amazon, because it doesn't treat my search keywords as mere suggestions. What I really need to do is fully kick the Amazon habit.