'Help somebody DO something' vs. 'Help somebody TO DO something'?

Just typing “helped somebody do something” into Google Search box, you get 228 results.
If you change the text to “helped somebody to do something”, you only get 1 results.
Just typing “helped them do the same” into Google Search box, you get 172,000 results.
If you change the text to “helped them to do the same”, you only get 2 results.
This is a proof that uses “do – infinitive without to” instead of “to do – infinitive with to” after the verb “help” in similar sentences.
I’m an English learner too.

Either is fine.

To do