This article describes now to programmatically find and highlight a particular word or a phrase in a document using Aspose.Words. It might seem easy at first to just find the string of text in a document and change its formatting, but the main difficulty is that due to formatting, the match string could be spread over several runs of text. Consider the following example. The phrase “Hello World!” consists of three different runs, its beginning is italic, middle is bold, while the last part – regular text. In addition to formatting, any bookmarks in the middle of text will split it into more runs. This article provides a solution designed to handle the described case – if necessary it collects the word (or phrase) from several runs, while skipping non-run nodes. The sample code opens a document and find any instance of the text “your document”. A replace handler is set up to handle the logic to be applied to each resulting match found. In this case the resulting runs are split around the txt and the resulting runs highlighted, even those matches that have different formatting and span across multiple runs.