1. Try an internship in HR first. A lot of multinational companies need students to help with paperwork or with simple tasks that the specialists don't have time to handle. They offer training and you will learn a lot if you are really interested.
2. Try courses in HR - instructor led courses in class are better, but online courses go too.
3. Register to HR groups on social networks (LinkedIn for example). You fill find there people who can give you lots of advice and also HR jobs for entry, middle or senior level.
4. Get an entry-level job in a multinational company. This will get you closer to their internal job board. A lot of multinational companies prefer to promote from the inside. Applying to a position advertised internally may help you get the job you hope for.