Dear, all! Is there any online information about the airfoil designed by companies such as Boeing or GE? If yes, where can I find it? Thanks.

Most companies will consider thier design processes and proceedures as proprietary information. Thus, you will probably not find documents where any company shows exactly how and why they design in a given manner. However, many companies also employ Ph.D.'s and Ph.D.'s like to "publish" whenever they are allowed. I therefore suggest that you perform multiple online searches for information. "Shake the trees..." the fruits are often there.