Thanks for the share, but that's not even a decent keyword in my opinion.
I'll explain why:
The fact that the word "earn" is used in the search term doesn't make it a long-tail keyword because it's still part of a larger theme (make money online). Google basically shows you really high authority sites on the first page that have covered this topic extensively and have loads of backlinks already.
You're basically telling people to start competing in the online marketing niche SEO wise through one of the most competitive terms
This goes to show you why the allintitle: operator isn't the best for judging competition in SERP.