Search is not highlighting keyword searched in all cases. Even when the keyword is part of a Table of Contents. Table of Contents should hold higher weight in the search for displaying the article. I can provide a specific example showing where even after adding a tag, the keyword searched does not display highlighted in the searched content. Your feature request will not allow me to upload the images - but I have them saved if you would like to see them - this might be a bug rather than a feature request.