Index: modules/node/node.module
===================================================================
RCS file: /cvs/drupal/drupal/modules/node/node.module,v
retrieving revision 1.963
diff -u -u -p -r1.963 node.module
--- modules/node/node.module	10 May 2008 13:19:50 -0000	1.963
+++ modules/node/node.module	10 May 2008 20:07:38 -0000
@@ -53,6 +53,13 @@ function node_help($path, $arg) {
       $node = node_load($arg[1]);
       $type = node_get_types('type', $node->type);
       return (!empty($type->help) ? '<p>' . filter_xss_admin($type->help) . '</p>' : '');
+    case 'search#noresults':
+      $noresults = array(
+        t('Check if your spelling is correct.'),
+        t('Remove quotes around phrases to match each word individually: <em>"blue smurf"</em> will match less than <em>blue smurf</em>.'),
+        t('Consider loosening your query with <em>OR</em>: <em>blue smurf</em> will match less than <em>blue OR smurf</em>.'),
+      );
+      return theme('item_list', $noresults);
   }
 
   if ($arg[0] == 'node' && $arg[1] == 'add' && $arg[2]) {
Index: modules/search/search.module
===================================================================
RCS file: /cvs/drupal/drupal/modules/search/search.module,v
retrieving revision 1.256
diff -u -u -p -r1.256 search.module
--- modules/search/search.module	6 May 2008 12:18:50 -0000	1.256
+++ modules/search/search.module	10 May 2008 20:07:38 -0000
@@ -102,12 +102,6 @@ function search_help($path, $arg) {
       return $output;
     case 'admin/settings/search':
       return '<p>' . t('The search engine maintains an index of words found in your site\'s content. To build and maintain this index, a correctly configured <a href="@cron">cron maintenance task</a> is required. Indexing behavior can be adjusted using the settings below.', array('@cron' => url('admin/reports/status'))) . '</p>';
-    case 'search#noresults':
-      return t('<ul>
-<li>Check if your spelling is correct.</li>
-<li>Remove quotes around phrases to match each word individually: <em>"blue smurf"</em> will match less than <em>blue smurf</em>.</li>
-<li>Consider loosening your query with <em>OR</em>: <em>blue smurf</em> will match less than <em>blue OR smurf</em>.</li>
-</ul>');
   }
 }
 
Index: modules/search/search.pages.inc
===================================================================
RCS file: /cvs/drupal/drupal/modules/search/search.pages.inc,v
retrieving revision 1.5
diff -u -u -p -r1.5 search.pages.inc
--- modules/search/search.pages.inc	14 Apr 2008 17:48:41 -0000	1.5
+++ modules/search/search.pages.inc	10 May 2008 20:07:38 -0000
@@ -35,7 +35,8 @@ function search_view($type = 'node') {
         $results = theme('box', t('Search results'), $results);
       }
       else {
-        $results = theme('box', t('Your search yielded no results'), search_help('search#noresults', drupal_help_arg()));
+        $help = module_invoke($type, 'help', 'search#noresults', drupal_help_arg());
+        $results = theme('box', t('Your search yielded no results'), $help);
       }
     }
 
Index: modules/search/search.test
===================================================================
RCS file: /cvs/drupal/drupal/modules/search/search.test,v
retrieving revision 1.1
diff -u -u -p -r1.1 search.test
--- modules/search/search.test	20 Apr 2008 18:23:29 -0000	1.1
+++ modules/search/search.test	10 May 2008 20:07:38 -0000
@@ -159,4 +159,32 @@ class SearchMatchTestCase extends Drupal
     // Check range.
     $this->assertEqual(!count($scores) || (min($scores) > 0.0 && max($scores) <= 1.0001), TRUE, "Query scoring '$query'");
   }
+  
+}
+
+class SearchNoResultsTestCase extends DrupalWebTestCase {
+  /**
+   * Implementation of getInfo().
+   */
+  function getInfo() {
+    return array(
+      'name' => t('Search help test'),
+      'description' => t('Tests the search help hook'),
+      'group' => t('Search'),
+    );
+  }
+
+  /**
+   * Implementation setUp().
+   */
+  function setUp() {
+    parent::setUp('search');
+  }
+  
+  function testSearchHelpHook() {
+    foreach (module_implements('search') as $module) {
+      $output = module_invoke($module, 'help', 'search#noresults', drupal_help_arg());
+      $this->assertTrue($output != '', "Module $module implements noresults help.");
+    }
+  }
 }
Index: modules/user/user.module
===================================================================
RCS file: /cvs/drupal/drupal/modules/user/user.module,v
retrieving revision 1.907
diff -u -u -p -r1.907 user.module
--- modules/user/user.module	7 May 2008 19:34:24 -0000	1.907
+++ modules/user/user.module	10 May 2008 20:07:39 -0000
@@ -1852,6 +1852,12 @@ function user_help($path, $arg) {
       </ul>', array('@permissions' => url('admin/user/permissions')));
     case 'admin/user/search':
       return '<p>' . t('Enter a simple pattern ("*" may be used as a wildcard match) to search for a username or e-mail address. For example, one may search for "br" and Drupal might return "brian", "brad", and "brenda@example.com".') . '</p>';
+    case 'search#noresults':
+      $noresults = array(
+        t('Check if your spelling is correct.'),
+        t('Beware that search user only looks for the Drupal user name and not the user\'s full name'),
+      );
+      return theme('item_list', $noresults);
   }
 }