К тендерам

/* @var Tenders $Tenders */
$Tenders = $modx->getService('tenders', 'Tenders', $modx->getOption('tenders_core_path', null, $modx->getOption('core_path') . 'components/tenders/') . 'model/tenders/', array());

$client = $Tenders->init_sphinx();
$client->_select = 'tid';
$client->SetFilter('status', array(6,2,4));
$client->SetFilter('region', array($region_id));

$response = $client->Query ($name, $modx->getOption('tm2_context_tenders'));
$total_found = $response['total_found'];

Получение ключевых слов из базы данных

http://sphinxsearch.com/forum/view.html?id=14063