The phrase "amazing coincidence" means a surprising and unexpected event or situation where two or more things happen at the same time or in a very similar way, which seems remarkable or extraordinary. Full definition
As Keith Morrison from Dateline might say...» what amazing coincidences! (judithcurry.com)
He describes a series of amazing coincidences that he freely admits are open to interpretation, but that have also resurfaced his grief, depression and trauma. (fortune.com)
A few amazing coincidences in recent history Atheist in power in Russia — millions murdered Atheist in power Germany — millions murdered Atheist in power China — millions murdered Atheist in power Cambodia — millions murdered (religion.blogs.cnn.com)