indeed api search for particular company

I am develping job portal and using indeed API.

In indeed API I am using following params to get searched

$params = array(

        "q" => $query,

        "co" => $country,

        "jt" => $jt,

        "salary" => $salary,

        'start' => $start,

        'limit' => $limit,

        "userip" => $ipaddress,

        "useragent" => $user_agent

    );

$results = $client->search($params);

now I want to make more specification in this, I want to make search for particular company like facebook, microsoft etc and want to add advancesearch feature "With these words in the title" so how can I add this two parameters.

let me know parameter to add in this query as these two are not listed properly in search parameters of Indeed API