The remain days off one job in the job page, I only can translate the word 'days' changing the code 'day' to 'dia' and 'days' to 'dias':
$remain_days = $days . ' ' . _n( 'day', 'days', $days, APP_TD );
This words don't are in the language file?
$remain_days = human_time_diff( strtotime('NOW'), $expire_date );
And the word NOW?