Thanks Sachin. You can in fact just add some keywords following the research string. So if you had been in search of “this resource is no more obtainable”, it is best to just do anything like: “this source is no longer accessible” + Exercise. Purchasing backlinks, in plain English, is https://www.consult-exp.com/blogs/131530/BUY-BACKLINKS-The-Crucial-Role-of-Anchor-Text-Diversity