Tools built into the search engine use on Google to improve your search result's for more info click the link below research tool's brought to you by the Google Guide witch is in no way affiliated with google.
Search Operators Link to Google Guide
inanchor: Restricts results to pages containing the query term used ( Example inanchor: seo research lab )
allinanchor:
inurl:
allintitle:
allinurl:
Tools built into Yahoo search engine
linkdomain: Back links or inbound links to a specific website
intitle:
Bing Tool
linkfromdomain: Outgoing links for the entered URL