You need to type the name of file in MATLAB Mobile in order to run it, once it is uploaded to MATLAB Cloud. Ex. If the file name is "Test.m" you need to type "Test" in MATLAB Mobile. Since you have mentioned that your files are uploaded in the 'Published' folder, you need to "cd" into 'Published' folder and then type the name of file to run it. You can do 'ls' to view which are the files that have been uploaded successfully.
For more information, visit below link: http://in.mathworks.com/help/matlabmobile_android/ug/use-files-on-the-cloud.html
Hope this helps.