Addition, reading a bit further down this discussion, someone mentioned the `allintext:` operator. This works, it actually returns only pages with the phrase "death coffee":
https://www.google.com/search?q=allintext:%22death+coffee%22
Ok Stieg Larsson is still the first hit, but as I said, it's technically correct. And now so are the rest of the results :D
BTW, to whoever made that Finderr.com page: It doesn't work quite correctly, if you search for `"death coffee"` it doubles the quotes. You probably need to re-think your query regex. Maybe you could modify it so that it includes the `allintext:` operator when you search for an exact phrase?