Why products not appear on 1st page even if I bid more?

Amazon Sponsored Products
1

Hi guys

I would like to know why products not appear on 1st page on the top or at the bottom, even if I bid more?

I have impressions but, I can’t see my product on keywords that I bid.

Could you help me?

Thank you

2

It’s normally down to popularity in case of items, as they want to display the most common items first, or if you’re a seller who is selling on a larger listing such as a HP Sprocket printer, then it is listed in order of price.