We don't need a checkbox because if you use quotes, we will match only content in the quotes, as our post explains. If there's no content at all that matches, o

We don't need a checkbox because if you use quotes, we will match only content in the quotes, as our post explains. If there's no content at all that matches, only in that case will we show a message making it clear there's no match and that we've conducted a search without quotes.