I generaly put the name I think about it in the google play to see what are the results .... the smaller the results the bigger chance to be found ..but this is not availlable for all app.. Generic names works in some cases but not recomended all the time especially not at the begining you can edit your name at any time (good practice to see which position you are on market page ) ... so be original and choose your own name.
Does your app have anything to do with the "Fibonacci sequence"? If not, the name might be confusing.
I did a Google search for "Fibonacci Calendar". Apparently the Fibonacci Sequence plays a role in the Gregorian calendar and Mayan calendar as well as the Golden Ratio and ratios appearing in nature.