If you are in Norway and cannot travel back to the Philippines due to cancelled departures, you can stay in Norway until you have the opportunity to travel to Manila. You have to order a new ticket as soon as the airport is able to cater regular air traffic, and it is possible for you to travel back to the Philippines. If your visa expires before you are able to travel back, you have to bring the initial ticket to show to the police when you travel out of Norway.
This is temporary. You have to follow our webpage for updates.