According to a site, it seems like Google has changed the way they handle the “show more results from†feature, by removing the simple HTML link to a site command feature and by dynamically opening up several more results, within the same search results page. They are using an AJAX (JavaScript) driven plus sign box that adds an additional five results to the web results.
http://searchengineland.com/googles-show-more-results-link-goes-contextual-23462
Traditional SEO has centered around moving one web site higher in the search results. The latest forms of SEO such as SEO Monopoly center on moving multiple sites higher in the search results.