WordPress Subcategory listing with Post Title

I would like to create a tutorial website using word press. How can we display subcategory with all its post title in a page. Consider,I have main navigation(Category) as Lessons and it has different subcategories like Chapter1,Chapter2,Chapter3 and so on....Here I need to display all subcategories under Lessons with titles of its own posts.Already i tried with

wp_list_categories('child_of=10')

But, by using the same how can we retr开发者_如何学Pythonieve each post title.. Thank you

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Thank you for spending time on my question. I got the right way to go forward.This may help someone.

http://iamnotagoodartist.com/how-to/wordpress-how-to-sort-category-archive-posts-by-subcategory