So you’re unhappy at work for a number of reasons. You think it’s best to look for another job. But you know your boss will freak if he finds out you plan to leave, right? That’s okay. Keeping yourjob hunt a secret is common practice. But it leaves you in a predicament: you need a reference and time off for interviews.

http://www.careers24.com/career-advice/job-hunting/how-to-keep-your-job-hunt-a-secret-20150731