'Advanced search' pretty much always dies like this:
Request aborted by debug time limit after 30 seconds.
STACK TRACE
PhabricatorSearchEngineElastic.php:383 PhabricatorStartup->onDebugTick()
PhabricatorSearchEngineElastic.php:216 PhabricatorSearchEngineElastic->executeRequest()
ManiphestTaskQuery.php:511 PhabricatorSearchEngineElastic->executeSearch()
ManiphestTaskQuery.php:216 ManiphestTaskQuery->buildFullTextWhereClause()
PhabricatorPolicyAwareQuery.php:227 ManiphestTaskQuery->loadPage()
PhabricatorCursorPagedPolicyAwareQuery.php:166 PhabricatorPolicyAwareQuery->execute()
PhabricatorApplicationSearchEngine.php:622 PhabricatorCursorPagedPolicyAwareQuery->executeWithCursorPager()
PhabricatorApplicationSearchController.php:218 PhabricatorApplicationSearchEngine->executeQuery()
PhabricatorApplicationSearchController.php:80 PhabricatorApplicationSearchController->processSearchRequest()
AphrontController.php:33 PhabricatorApplicationSearchController->processRequest()
AphrontController.php:69 AphrontController->handleRequest()
ManiphestTaskListController.php:24 AphrontController->delegateToController()
AphrontController.php:33 ManiphestTaskListController->processRequest()
AphrontApplicationConfiguration.php:196 AphrontController->handleRequest()
AphrontApplicationConfiguration.php:121 AphrontApplicationConfiguration->processRequest()
index.php:19 AphrontApplicationConfiguration->runHTTPRequest()