Deleting multiple clones

How do I destroy multiple codes by code?

For example

Destroy (GameObject.Find ("Cross(Clone)"));

destroys the "Cross(Clone)"

but

Destroy (GameObject.Find ("Cross(Clone)"));
Destroy (GameObject.Find ("Cross(Clone)"));
Destroy (GameObject.Find ("Cross(Clone)"));

only destroys one clone not three clones, leaving the other two clones undestroyed.

What is the correct code for displaying all three clones at the same time?