You remember the post How to get a page/post content, don’t you? Then, we may get the page/post content by:

As you can see from the code above, we used get_page_by_path() function instead get_page_by_title() function, because some plugin ( like qTranslate )  could change the content on the database. In fact, the get_page_by_title() function gets a content of a page through a database SELECT statement:

So, if for some reason the title has been changed then the get_page_by_title() function doesn’t work properly. The  get_page_by_path() function uses the slug. Further, the get_page_by_path() function works with private pages as well.