Hello, @Siva,
Our theme searches by title, description, SKU, posts, and pages. It does not search by tags, brands, or categories. https://www.8theme.com/topic/include-brands-in-search-results/
You can post your request here – https://www.8theme.com/taskboard/ , so our dev team read it. If it takes votes from other customers, our dev team will try to add it in one of the next updates.
Regards 8Themes Team.
