There are a lot of search engines Google Bing Yahoo and other search engines and of course most famous Google, millions of information and new content is stored from the web pages, these pages are reviewed with each search and will not get the same results if you use each engine Independent in this topic the method of linking these engines to get the results of one search for more than one search engine and methods are two sites and application for Android phones and ios.
1 - Smart Search application
A free 100% application for Android users and iPhone is a collection and integration of all known search engines such as Google, Yahoo and Bing, as well as Twitter, Facebook, Wikipedia, other sites, search engines and other services. Download the Androidapplication - ios )
2 - Theinfo site
The site offers a lot of search engines that can be used in searching the web and pictures and videos also gives you the possibility to search in some of the evidence and famous sites such as About.com and the Google Directory and can be combined between all these services and search once, Site link )