My personal moment when I realized Google isn't as smart as I thought, came from searching phone numbers.
A number calls me.
I type in the number with spaces to Google to try and find it. No results. Nothing.
I add dashes. Results come up.
I put the area code in parentheses, different results come up.
If google can't figure out how to search 9 digit numbers against phone numbers correctly, I'm not sure I can trust them for anything.