Looking on the internet deeply has found these results:

if so is the most popular phrase on the web.

if yes 131,300,000 results on the web	if so 114,920,000,000 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
Yes/no [if yes, specify the kind of insurance] (if yes, short description) ... Hybrid operation modes: yes/no(4) (if yes, short description): ... whether content encryption is necessary and if yes which methods should be chosen, (if yes, short description): ... If yes, please note that pursuant to paragraph 142 of the Guidelines the Commission cannot authorise such aid. If yes, please detail the difficulties encountered. Introduced in the support programme: yes/no, if yes:	The threat of ruin carries upon such deceit, if so embraced. And And if so, save thousands of lives. They could pray, if so inclined. and if so, great, fantastic. Because if so, there is nothing you could have possibly done to better guarantee that result. Even if so, you shouldn't do this. And if so, I failed.

if yes

131,300,000 results on the web

if so

114,920,000,000 results on the web

More popular!

Yes/no [if yes, specify the kind of insurance]
(if yes, short description) ...
Hybrid operation modes: yes/no(4) (if yes, short description): ...
whether content encryption is necessary and if yes which methods should be chosen,
(if yes, short description): ...
If yes, please note that pursuant to paragraph 142 of the Guidelines the Commission cannot authorise such aid.
If yes, please detail the difficulties encountered.
Introduced in the support programme: yes/no, if yes:

The threat of ruin carries upon such deceit, if so embraced.
And
And if so, save thousands of lives.
They could pray, if so inclined.
and if so, great, fantastic.
Because if so, there is nothing you could have possibly done to better guarantee that result.
Even if so, you shouldn't do this.
And if so, I failed.