Does this strategy remain additional lessons or it's easy to get it through the internet??
I think it can be easily found on the Internet, because this strategy is not difficult. If we talk about others, then some of it sell for money. where it can be found you should know

Anyway, it all boils down to the amount of research on player's or bookmaker's par to know how to work around the coefficients. Miscalculations on bookmaker's par can be very taxing especially regarding long-term support and trust coming from customers.
And I don't think you can sell the most basic common sense or lack thereof.