Looking on the internet deeply has found these results:

if it is possible is the most popular phrase on the web.

If possible 165,900,000 results on the web	if it is possible 1203,000,000 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
It doesn't look like this phrase is very popular! The search could not find any examples on the internet.	I've been asked if it is possible to save Claretta Petacci along with Mussolini. Do it if it is possible from a safe position. I will talk to Captain Collins to see if it is possible. And if it is possible, it better be in somebody else's precinct. I was also asked if it is possible to judge whether Parliament's opinions have been sufficiently taken into account when decisions are adopted. I will see if it is possible to go further. Mr President, I wonder if it is possible to get a set of headphones. Let's see if it is possible to delete the arguments against the war.

If possible

165,900,000 results on the web

if it is possible

1203,000,000 results on the web

More popular!

It doesn't look like this phrase is very popular! The search could not find any examples on the internet.

I've been asked if it is possible to save Claretta Petacci along with Mussolini.
Do it if it is possible from a safe position.
I will talk to Captain Collins to see if it is possible.
And if it is possible, it better be in somebody else's precinct.
I was also asked if it is possible to judge whether Parliament's opinions have been sufficiently taken into account when decisions are adopted.
I will see if it is possible to go further.
Mr President, I wonder if it is possible to get a set of headphones.
Let's see if it is possible to delete the arguments against the war.