I have found an article from BBC.
Here is part of the passage.
There are any number of sayings about the power of the smile. 'Peace begins with a smile.' 'A smile is the universal welcome.' 'Life is short but a smile only takes a second.' All good advice. But it may not be as simple as that. According to new research, if you want to make a good impression when you meet people, it's not just that you smile. It's how you smile.
What is the meaning of 'There are any number of'.
What I want to focus is the word, 'any'.
Is this phrase as same as 'there is a number of'?
Thx for your kind help