Biggest difference between Google estimates and actual returns?

I've come across a search term that returns a fairly impressive
87,400 estimated hits but only returned 429 actual pages
including duplicates. Anybody spotted a larger discrepancy?

It was going to be my first 'insta-submission' word based on the
87,400 - it's lucky I spotted the mismatch.

(In case anybody is wondering - here's the search link
http://www.google.co.uk/search?q=%22%E3%82%A8%E3%83%83%E3%83%81%E3%81...
) LD

.

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