Alright guys, i found myself that how to connect the two dots, i.e. Express Entry and Job bank.
Once you go to http://www.jobbank.gc.ca/content_pieces-eng.do?cid=6843 as indicated in your PDF document, you have to click
Registration for a new
Job Match Service is now open. Once you go through the account creation, you will find out "Express Entry Candidate" where you have to provide Express Entry profile number and Job Seeker Verification code.
But aparently, this system is new and hence they are informing as follows
Coming soon: More Jobs, Better Matches!
You will soon have access to a new job matching service on Job Bank.
Find the job that is right for you!
Enjoy