This is a response to the question of whether the techniques shown in the video may also be used in searching the internet. I do not have anything to do with the questioner or the uploader of the video or with the 'Internet Archive', except as a community member. The answer to this question, however, may be found within the video itself.
At 1:18, the presenter states that boolean operators can be used in searching the internet. I prefer 'DuckDuckGo' as a search engine due to my preference for net neutrality. 'Google' actively manipulates search results, for its own revenue on many if not all manipulations. The main claim to fame for 'DuckDuckGo' is that it does not track where you visit on the Internet - let alone sell that information to corporations.
That aside, however, the answer is yes - one is able to use AND, OR, AND NOT, () and ""
i.e. the boolean operators in searching the internet. Obviously, the information later in the video regarding meta-data tags is specific to the 'Internet Archive' or wherever a website makes use of meta-data tags. It depends on how that website works.
It was stated in the video but I can see how this piece of information could be missed as it is only said briefly and no general search engines were mentioned (let alone displayed). I suppose the uploader did not want to be diverted too much. I saw all sides. I hope my comment ("review") here helps.