Place the hamster's cage on the floor. Put some food and water in the cage, and leave it with the door open near where you think your hamster is hiding. Hamsters may eventually want to go somewhere secure that smells familiar. If you have an aquarium cage, you can place it on its side. Another way to try to catch the hamster is to put the wheel out. When you hear the squeaks at night, you will know which room the hamster is in. You may be able to sneak up on the hamster and catch it. Put some of the hamster's favorite food on some tinfoil in corners of the room. Dim all lights late at night and listen for the hamster rustling the tinfoil as it goes after the food. When you put treats out at night, surround the treats with a ring of flour. When the hamster goes to the treats and takes them back to its hideout, the feet will leave a trail of flour back to where it's staying. A humane mousetrap might be a way to catch your hamster. Set them out at night, making sure to check them as soon as you wake up in the morning. Turn off all lights and electronics. Stand very still in the dark room. Listen for sounds of the hamster. You may have to wait a little bit. Eventually, you will hear the hamster moving around. You can try tying a string with a bell on it to a carrot stick. When the hamster eats the carrot stick, he will move the bell. When you finally find the hamster, you need to catch it. Toss a lightweight towel over the hamster so that the towel covers it. This will stop the hamster and hold it in place while keeping it safe. Gently pick up the hamster and place it back in the cage. If you know where the hamster is, you can try to lure it into a tube with one closed end. Place the tube close to the hamster and place some food into the tube. When the hamster is inside, cover the opening and gently lift the tube. Place the hamster back into its cage.

TL;DR in Indonesian:
Tinggalkan kandang hamster di atas lantai. Keluarkan roda hamster. Letakkan makanan di kertas aluminium. Kelilingi camilan dengan tepung. Cobalah jebakan tikus yang lebih manusiawi. Dengarkan suara hamster. Lemparkan handuk yang ringan ke tubuh hamster. Pancinglah hamster ke dalam sebuah tabung.