Punctuation in Google search queries

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My research discloses that punctuation in Google search queries will "usually" be ignored. Yet I often find that when I omit punctuation Google will demand to know whether I really meant the version with the punctuation. Is it possible for me to learn when and when not punctuation in such queries in necessary?

 

Perhaps I should have explicitly excluded from my question the double quotes, which of course are a Google search operator. The punctuation my question concerns is such as apostrophes. I'm afraid Allan's reply is worthless. Having extensively used Google search since it originated, I have as much "experience" as I could have.

 

As my original question indicated, Google does not provide that answer--or, if it does, the answer is inaccessible to me [or else I would not have posted here]. Any real help here, from someone who would actually read the question, would be welcomed.

 

As for me I don't think that punctuation during a Google search is necessary on the whole.
I think I never do that and always find what I need.

 

I seldom use punctuation.
Quotation marks mostly when I look for a specific group of words or a sentence.

That said, knowing the link Triple 6 posted could come in handy.

Thanks.