I want to allow users perform a search on my website directly from Google search. I placed the Schema.org markup in the head section of every page.Google crawled my website recently but search box hasn't appeared just yet.I did check on Structed Data Testing Tool and it was successful.Should it be placed on every page or just index.asp? 
Search box hasnt appeared after Google crawled my Schema.org
google search;schema.org;search;rich snippets