Omitted search result

I have 3 page

Page A
Page B
Page C

Page C , rank 1# in google for a keyword .
I have no access directly to pages and server to edit.

How can i force google to show page A instead of page C in search result ?

Currently page A and page B are in omitted search result ( page 4 ) and not shown in google .

Just try to build the backlinks for page 1 if you don't have website access. By the way you can push page 1.