Focused crawls are collections of frequently-updated webcrawl data from narrow (as opposed to broad or wide) web crawls, often focused on a single domain or subdomain.
The Wayback Machine - https://web.archive.org/web/20150527111107/http://www.hindustantimes.com/Search/search.aspx?q=Msg+Health+Hazards&op=all&pt=all&auth=all