You have to check box "Web" for it to search in linked articles too. Without that it highlights the words in articles that are found only because of title. And

You have to check box "Web" for it to search in linked articles too. Without that it highlights the words in articles that are found only because of title. And the indexing of contents isn't perfect, sometimes it seems to work for main article content but not for article author name even when it's shown.