Find the parent div of a specific text in a HTMLDocument

This would do it I think...

var nodes2 = doc.DocumentNode.SelectNodes("//div[contains(.//text(), 'Hello World')]");

And this is probably an even better solution:

var nodes3 = doc.DocumentNode.SelectNodes("//text()[contains(., 'Hello World')]/ancestor::div[1]");

or use the Linq-to-XML notation:

        var nodes =
            doc.DocumentNode.Descendants("div")
               .Where(
                   div =>
                   div.DescendantsAndSelf("text()").Where(text => text.InnerHtml.Contains("Hello World")).Any())

Or

        var nodes4 = from div in doc.DocumentNode.Descendants("div")
                     from text in div.DescendantsAndSelf("text()")
                     where text.InnerText.Contains("Hello World")
                     let firstParent = text.AncestorsAndSelf("div").First()
                     select firstParent;