Comment 17 for bug 406626

I think that search is flawed. "Trash" is very rarely used in spoken UK English when referring to "Rubbish", the only time I can think of the word "trash" being used is reference to something like a TV show, or book e.g. "That book was trash" but even that itself is a rarity because I believe quite an old fashioned usage of the term.

You'll note that in that "rubbish" as a term occurs 2257 times, and "bin" 682. These are separate words normally spoken and written without hyphenation, which would explain why the hyphenated version only occurs once.