What is the last item "tags"? What is it and how they look, you can give an example.
Closed due to the fact that the essence of the question is not clear to the participants 0xdb , LFC , freim , Enikeyschik , Flowneee 19 Feb at 8:20 .
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2 answers
Thanks to the capabilities of the Search module, indexing occurs not only in the text, but also in tags, if they are, of course, indicated.
Quite often, it is very convenient to use both search engines in turn. For example, first select the pages by the desired tag, and then search using the search index, in the results selected by tags.
Tags are topics for an informational message. An informational message means a lot: an information block element, a message in a forum or blog, photo tags, and so on. Currently, tags can be entered in static pages, elements of information blocks, in blogs and forums. Tag input format: comma and space. 
Meta tags (from the English. "Meta tags") are used to structure the accompanying data about the page. They are designed exclusively for robots, browsers, specialized software, so that they “read” correctly and process the presented information. The meta data is located in the HEAD directive along with scripts, styles, and links (see the screenshot below).
A source
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