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    <p>In your Regex.Matches, you need to use \b word boundaries character. I just wrote an example code in C#, and now I noticed that your question is for VB.NET, so I'll add both code examples:</p> <p><strong>C#:</strong></p> <pre><code> //Example 1: var testString = "parfaite ment aux exigences create évolutives du marché d aujourd hui"; var pattern = "ate"; MatchCollection found = Regex.Matches(testString, @"\b" + pattern + @"\b"); if (found.Count &gt; 0) { foreach (Match f in found) { Console.WriteLine("'{0}' found at position {1} in given testString.", f.Value, f.Index); } } else Console.WriteLine("No matches in given testString."); //Example 2: var testString1 = "parfaite ment aux exigences cre*ate* évolutives du marché d aujourd hui I don't know the language but this: ate and the last one should be found: ate!"; var pattern1 = "ate"; MatchCollection found1 = Regex.Matches(testString1, @"\b" + pattern1 + @"\b"); if (found1.Count &gt; 0) { foreach (Match f in found1) { Console.WriteLine("'{0}' found at position {1} in given testString1.", f.Value, f.Index); } } else Console.WriteLine("No matches in given testString1."); Console.ReadLine(); </code></pre> <p><strong>VB.NET:</strong></p> <pre><code> 'Example 1: Dim testString = "parfaite ment aux exigences create évolutives du marché d aujourd hui" Dim pattern = "ate" Dim found As MatchCollection = Regex.Matches(testString, "\b" &amp; pattern &amp; "\b") If found.Count &gt; 0 Then For Each f In found Console.WriteLine("'{0}' found at position {1} in given testString.", f.Value, f.Index) Next Else Console.WriteLine("No matches in given testString.") End If 'Example 2: Dim testString1 = "parfaite ment aux exigences cre*ate* évolutives du marché d aujourd hui I don't know the language but this: ate and the last one should be found: ate!" Dim pattern1 = "ate" Dim found1 As MatchCollection = Regex.Matches(testString1, "\b" &amp; pattern1 &amp; "\b") If (found1.Count &gt; 0) Then For Each f As Match In found1 Console.WriteLine("'{0}' found at position {1} in given testString1.", f.Value, f.Index) Next Else Console.WriteLine("No matches in given testString1.") End If Console.ReadLine() </code></pre>
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    1. POHow to find exact word from sentence
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    1. USJanez Lukan
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