You can find and select all text that matches a particular style (for example, all bold words in Arial Narrow font). You can search in a selection of text or in the entire document.
Make sure the ruler is displayed by choosing Format > Text > Show Ruler.
Choose Other from the Styles pop-up menu in the ruler.
Select either Document Styles or Favorite Styles.
Use the Forward and Back buttons to cycle through available styles until you find the one you want, and then click Select.
Select to search either within the entire document or within selected text.
Click Select.
Select the options you want to use in your search, and then click Select.