MC-21228: Support partial word search in Elasticsearch

- Added unit test case

Author: Prabhu Ram

app/code/Magento/Elasticsearch/Test/Unit/SearchAdapter/Query/Builder/MatchTest.php

@@ -199,6 +199,28 @@ public function buildDataProvider(): array
                     ],
                 ],
                 '2<75%'
+            ],
+            'match_phrase_prefix query with minimum_should_match' => [
+                '"fitness bottle"',
+                [
+                    [
+                        'field' => 'name',
+                        'boost' => 5,
+                        'matchCondition' => 'match_phrase_prefix'
+                    ]
+                ],
+                [
+                    [
+                        'match_phrase_prefix' => [
+                            'name' => [
+                                'query' => 'fitness bottle',
+                                'boost' => 6,
+                                'minimum_should_match' => '2<75%',
+                            ],
+                        ],
+                    ],
+                ],
+                '2<75%'
             ]
         ];
     }