如何使用LINQ在C#中找到嵌套的selenium WebElement？

using OpenQA.Selenium;
using OpenQA.Selenium.Chrome;
using System.Linq;

IWebDriver driver = new ChromeDriver();
driver.Navigate().GoToUrl("https://example.com");

IWebElement parentElement = driver.FindElement(By.Id("parentElementId"));
IEnumerable<IWebElement> nestedElements = parentElement.FindElements(By.XPath(".//*"));

string keyword = "example";
IEnumerable<IWebElement> filteredElements = nestedElements.Where(e => e.Text.Contains(keyword));