If you start your query with allintitle:, Google restricts results to those containing all the query terms you specify in the title. For example, [ allintitle: google advanced strings ] will return only documents that contain the words "google", "advanced" and "strings" in the title. This functionality can also be obtained through the Advanced Web Search page, under Occurrences.
The title of a webpage is usually displayed at the top of the browser window and in the first line of Google's search results for a page. The author of a website specifies the title of a page with the HTML TITLE element. There's only one title in a webpage. When using allintitle: in your query, do not include any other search operators. The functionality of allintitle: is also available through the Advanced Web Search page, under Occurrences.
In Image Search, the operator allintitle: will return images in files whose names contain the terms that you specify.
In Google News, the operator allintitle: will return articles whose titles include the terms you specify.