private function getAllDocumentsForStrictKeyword($word, $noLimit)
{
$query = "SELECT * FROM doclist WHERE term_id = :id ORDER BY hit_count DESC LIMIT {$this->maxDocs}";
if ($noLimit) {
$query = "SELECT * FROM doclist WHERE term_id = :id ORDER BY hit_count DESC";
}
$stmtDoc = $this->index->prepare($query);
$stmtDoc->bindValue(':id', $word[0]['id']);
$stmtDoc->execute();
return new Collection($stmtDoc->fetchAll(PDO::FETCH_ASSOC));
}