Google Search result problem

I am working with a an e commerce website. i target the keyword and promoting the home page with it. but now some days google display other page of website my promoted keyword.it does not shown home page. why this problem creating? Is Goolge change its ranking factor?

Welcome to Sitepoint. Do you have the same keywords on every page? Did you recently made changes to your index page. And so are there many more questions that can be asked

To your question if Google have changed it ranking factor. I think no one knows when Google changes it’s policy

Possibly keyword density in your other pages is higher than homepage or other than this your homepage have less content than other pages… it happens some time. If you have conducted off-page activities for homepage then sooner or later your homepage will appear, do remember one thing keep on updating your homepage or page you are targeting for your visitors, since google index fresh content faster than any other.

hi…no i have not same Keyword but in one categgory have many keyword. so i target each keyword particular category and its inner pages.

Its an e commerce website so content is very less. i put content at only in home page and inner page have no and content there are only product with its detail description.

That is the answer, you have less content at inner pages and I suppose you are building not equal number of backlinks