Make your Google searches even more efficient with these Google Advanced Search shortcuts. The following advanced search commands will help you narrow your searches, dig deeper into previously hidden content, and retrieve information quickly.
Google Advanced Search:
The “inurl:” syntax restricts the search results to those URLs containing the search keyword. For example: “inurl: blog” (without quotes) will return only links to those pages that have “blog” in the URL. Similarly, if one has to query for more than one word in an URL then in that case “allinurl:” can be used instead of “inurl” to get the list of URLs containing all those search keywords in it. For example: “allinurl: etc/blog“ will look for the URLs containing “etc” and “blog”. The slash (“/”) between the words will be ignored by Google.
The “site:” syntax restricts Google to query for certain keywords in a particular site or domain. For example: “inspiration site:sswebdesigner.com” (without quotes) will look for the keyword “inspiration” in those pages present in all the links of the domain “sswebdesigner.com”. There should not be any space between “site:” and the “domain name”.
This “filetype:” syntax restricts Google search for files on internet with particular extensions (i.e. doc, pdf or ppt etc). For example: “filetype:doc site:gov confidential” (without quotes) will look for files with “.doc” extension in all government domains with “.gov” extension and containing the word “confidential” either in the pages or in the “.doc” file. i.e. the result will contain the links to all confidential word document files on
the government sites.
The “related:” will list web pages that are “similar” to a specified web page. For Example: “related:www.google.com” will list web pages that are similar to the Google. Note there can be no space between the “related:” and the web page url.
source : Google !!