functions.php

<?php
// @link https://searchwp.com/documentation/classes/searchwp-statistics/
$statistics = \SearchWP\Statistics::get_popular_searches( [
  // 7 days old or newer.
  'days' => 7,
  
  // The Engine used for searches.
  'engine' => 'default',
  
  // The search queries to ignore i.e. spam, junk.
  'exclude' => [ 'spam search query', 'lorem ipsum' ],
  
  // How many search queries to return.
  'limit' => 5,
  
  // With at least one result.
  'min_hits' => 1,
  
  // With at most 100 results.
  'max_hits' => 100,
  
  // Which site(s) to consider.
  'site' => [ get_current_blog_id() ],
] );

// Display the stats in a <table>.
\SearchWP\Statistics::display( $statistics );