@Max1552 I call Airbnb about this all of the time; they really don't have a reason for this. I have been told numerous times that the algorithms continuously change, so no matter what you do, you can't get your listing to appear. Try logging into an incognito browser and search for your listing. Some methods you can try to boost your listing include: constantly changing prices (sometimes when I do this, a badge comes on my listing "new price"), make sure all of your listing's photos are horizontal, have lots of photos of your unit, update your guidebook and make sure it has lots of info that can't easily be found about your area, encourage guests to "heart" your listing, just to name a few.