php ile yaptığım bir sitede arama işlemi başarıyla gerçekleşiyor fakat mesela hi kelemesini arattık diyelim içinde hi olan bütün kelimeleri gösteriyor bu sorunu nasıl çözebilirim? sadece aradığım kelimenin sonuç olarak çıkmasını istiyorum

<div class="w-full flex justify-center ">
<div class="column col-6 col-mx-auto mt-4">
<form method="GET" class="md:px-32 py-3 w-full" action="dictionary.php">
<div class="input-group">
<select class="select w-full" name="dictionary">
<option value="en_tr">English - Turkish</option>
<option value="de_en">Deutsch - English</option>
<option value="de_tr">Deutsch - Turkish</option>
<option value="es_en">Spanish - English</option>
<option value="es_tr">Spanish - Turkish</option>
<option value="fr_en">French - English</option>
<option value="fr_tr">French - Turkish</option>
<option value="it_en">Italian - English</option>
<option value="it_tr">Italian - Turkish</option>
<option value="pl_en">Polish - English</option>
<option value="pl_tr">Polish - Turkish</option>
<option value="ru_en">Russian - English</option>
<option value="ru_tr">Russian - Turkish</option>
</select>
<input class="input mt-4 w-full" type="text" name="word" placeholder="Search word...">
<button class="btn w-full mt-4" type="submit">Ara</button>
</div>
</form>
<?php
if ($_SERVER["REQUEST_METHOD"] == "GET" && isset($_GET["dictionary"]) && isset($_GET["word"])) {
$dictionary = $_GET["dictionary"];
$word = $_GET["word"];
require_once 'includes/dbconn.php';
$column1 = '';
$column2 = '';
switch ($dictionary) {
case "en_tr":
$column1 = "english";
$column2 = "turkish";
break;
case "de_en":
$column1 = "german";
$column2 = "english";
break;
case "de_tr":
$column1 = "german";
$column2 = "turkish";
break;
case "es_en":
$column1 = "spanish";
$column2 = "english";
break;
case "es_tr":
$column1 = "spanish";
$column2 = "turkish";
break;
case "fr_en":
$column1 = "french";
$column2 = "english";
break;
case "fr_tr":
$column1 = "french";
$column2 = "turkish";
break;
case "it_en":
$column1 = "italian";
$column2 = "english";
break;
case "it_tr":
$column1 = "italian";
$column2 = "turkish";
break;
case "pl_en":
$column1 = "polish";
$column2 = "english";
break;
case "pl_tr":
$column1 = "polish";
$column2 = "turkish";
break;
case "ru_en":
$column1 = "russian";
$column2 = "english";
break;
case "ru_tr":
$column1 = "russian";
$column2 = "turkish";
break;
default:
break;
}
if (!empty($column1) && !empty($column2)) {
$stmt = $conn->prepare("SELECT $column1, $column2 FROM $dictionary WHERE $column1 LIKE ? OR $column2 LIKE ?");
$searchTerm = "%$word%";
$stmt->bind_param("ss", $searchTerm, $searchTerm);
$stmt->execute();
$result = $stmt->get_result();
if ($result) {
if ($result->num_rows > 0) {
echo "<h2 class='text-center'>Search Results</h2>";
echo "<div class='md:px-32 py-8 w-full'>";
echo "<div class='shadow overflow-hidden rounded border-b border-gray-200'>";
echo "<table class='min-w-full bg-white text-darkmain dark:bg-gray-700 dark:text-white'>";
echo "<thead class='bg-gray-800 text-white'>";
echo "<tr>";
echo "<th class='w-1/3 text-left py-3 px-4 uppercase font-semibold text-sm'>Word</th>";
echo "<th class='w-1/3 text-left py-3 px-4 uppercase font-semibold text-sm'>Meaning</th>";
echo "</tr>";
echo "</thead>";
echo "<tbody class='text-gray-700'>";
while ($row = $result->fetch_assoc()) {
echo "<tr>";
echo "<td class='w-1/3 text-left py-3 px-4 dark:text-white'>" . $row[$column1] . "</td>";
echo "<td class='w-1/3 text-left py-3 px-4 dark:text-white'>" . $row[$column2] . "</td>";
echo "</tr>";
}
echo "</tbody>";
echo "</table>";
echo "</div>";
echo "</div>";
} else {
echo "<p class='text-center mt-4'>The search result could not be found.</p>";
}
} else {
echo "Hata: " . $conn->error;
}
$stmt->close();
}
$conn->close();
}
?>
</div>
</div>