In this book it has been written:
The $ns$, $(n − 1)d$, and $(n − 2)f$ orbitals are so close to one another in energy, and interpenetrate one another so extensively.
And in the wikipedia article of Pauli exclusion principle it has been written:
The Pauli exclusion principle is the quantum mechanical principle that states that two identical fermions (particles with half-integer spin) cannot occupy the same quantum state simultaneously. In the case of electrons in atom, it can be stated as follows: it is impossible for two electrons of a poly-electron atom to have the same values of the four quantum numbers.
Does this mean that two electrons of an atom can have significant radial probability at the same location even if they are defined by different set of quantam numbers?