Operator (+) no longer works in Google search

For ten years, many of us have used the “plus” (+) operator to specify a required word in a search query, but now Google has disabled this command as “redundant”. For example, the [+ ip] request is now similar to [ip] and [intellectual property], since synonyms are always automatically taken into account when processing a Google request.



In some ways, Google is right, because plus (+) duplicates quotes (""), and this duplication was unnecessary. Now, if you want to remove synonyms from the output, it remains to use only quotes.
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According to some users, the reason for the destruction of the favorite plus sign is that Google allegedly wants to reserve the “+” badge exclusively for the Google+ service. But this version looks somehow too childish.