@Wendy154
Wendy, there is a wide mix of things that come into play that determine what a person sees when they do a generic search (ie without dates and prices etc). In general that will tend to show the new hosts on the block (for a period of time) plus then those with IB switched on, with superhost status, those getting new bookings, with no guest cancellations, etc...
You can try to bolster your position on the listings pages by changing text/photos on a regular basis.