I am using the web interface.
I type a word in the "Search For:" box.
"In:" says "Windows 64bit Edition

I tried "8500DV". No results. Then I picked a word from the first post on
screen - "Netscape". No results. "XP" No results. "Windows" No results.

ALL queries return:
"Your query for "netscape" did not return results.

The following may help you find the results you were looking for:

Check your spelling.
Enter a term or phrase that's less specific.
Try different phrasing.
Try fewer words"

Sorry if this is OT, I'd search for an answer but...