Help me! My sample pages indexed by google

there is a lot of page that exist in my panel from sample theme and I keep theme for later use, but google indexed all pages, that dont have a true content. what can I do??
is this normally?
if I delete this pages how to access them again?

Hi,

Sorry, but google index doesn’t depend on our theme at all. Here is an article that should help you http://www.wpbeginner.com/wp-tutorials/how-to-hide-a-wordpress-page-from-google/

Regards

[Author]

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