Import Google search results using ImportXML
<p>I want to use Google Sheets to grab Google search results's number. 
My formula is:</p>

<pre><code>=ImportXML(URL,"//div[@id='resultStats']")

=IMPORTXML("https://www.google.it/search?q=seo+prova";"//div[@id='resultStats']")
</code></pre>

<p>Google Sheets always returns #N/A, is there something wrong with the formula?
I think the problem is in the url, but I don't have solution. </p>