That is because Tableau desktop allows 6 levels of dimensions on rows and columns shelves. After that it starts concatenating them to save space. You can go to Analysis > table layout > advanced and change all the 6's to to 16s (which is the max number of columns Tableau currently allows) you will get what you need.
You may check this out and may want to upvote this idea : http://community.tableau.com/ideas/2628
thanks. got it.