Google's blog search engine has a bug that shows weird suggestions for your query in the seventh page of results. While you can't see the weird "did you mean" for every query, I got the message for two different queries.
One of the suggestions was:
"Elena Dementieva" (naked| scandal| divorce| separated| cancel| lawsuit| police| injured)
As you probably know, | is an alternative way of entering the boolean operator OR that triggers all the results which contain at least one of the keywords separated by the operator. But this suggestion is most likely a bug because is completely unrelated to the query and very few people use advanced operators.