diff --git a/lab4/main_test.js b/lab4/main_test.js
index e37d21a..c83cfc5 100644
--- a/lab4/main_test.js
+++ b/lab4/main_test.js
@@ -1,22 +1,58 @@
 const puppeteer = require('puppeteer');
 
 (async () => {
-    // Launch the browser and open a new blank page
-    const browser = await puppeteer.launch();
+    const browser = await puppeteer.launch({ headless:false});
     const page = await browser.newPage();
 
-    // Navigate the page to a URL
+    // Set viewport size
+    await page.setViewport({ width: 1080, height: 1024 });
+
+    // Navigate to the Puppeteer official website
     await page.goto('https://pptr.dev/');
 
-    // Hints:
-    // Click search button
-    // Type into search box
-    // Wait for search result
-    // Get the `Docs` result section
-    // Click on first result in `Docs` section
-    // Locate the title
-    // Print the title
+    // Click the search button in the top-right navbar
+    const searchBtnSelector =
+        '#__docusaurus > nav > div.navbar__inner > div.navbar__items.navbar__items--right > div.navbarSearchContainer_IP3a > button > span.DocSearch-Button-Container > svg';
+    await page.waitForSelector(searchBtnSelector);
+    await page.click(searchBtnSelector);
+
+    // Type search query into the search input
+    const searchInputSelector = '#docsearch-input';
+    await page.waitForSelector(searchInputSelector);
+    await page.type(searchInputSelector, 'andy popoo');
+
+    // Wait for the specific search result item to appear
+    const targetItemSelector = '#docsearch-hits1-item-4';
+    await page.waitForSelector(targetItemSelector);
+
+    // Wait until the <a> element inside the target result is rendered with content
+    await page.waitForFunction(() => {
+        const item = document.querySelector('#docsearch-hits1-item-4');
+        const link = item?.querySelector('a');
+        return !!link && link.textContent.trim().length > 0;
+    });
+
+    // Click the target result link from within the page context
+    await Promise.all([
+        page.waitForNavigation({ waitUntil: 'networkidle0' }),
+        page.evaluate(() => {
+        const item = document.querySelector('#docsearch-hits1-item-4');
+        const link = item?.querySelector('a');
+        if (link) link.click();
+        }),
+    ]);
+
+    // Wait for the title element to appear and extract its text content
+    const titleSelector = '#__docusaurus_skipToContent_fallback h1';
+    await page.waitForSelector(titleSelector);
+    const titleHandle = await page.$(titleSelector);
+    const fullTitle = titleHandle
+        ? await page.evaluate(el => el.textContent, titleHandle)
+        : null;
+
+    // Print the page title after navigation
+    console.log(fullTitle);
 
     // Close the browser
     await browser.close();
-})();
\ No newline at end of file
+})();