Поиск слов в doc документе - C#

// Open a doc file.
var application = new Application();
var document = application.Documents.Open(path);
 
// Loop through all words in the document.
foreach (Paragraph paragraph in document.Paragraphs)
{
    Console.WriteLine(paragraph.Range.Text + "");
    Console.WriteLine();
    if (paragraph.Range.Font.Bold == -1)
{
    Console.WriteLine("Is bold");
    Console.Read();
}
}
 
// Close word.
application.Quit();