Dear Khalid,
Though Nano presented a valid opinion, however I would look differently into your case. Let's look into the definition of diploma in CIC Laws: "Non-university certificate/diploma training in a profession that requires formal education but not at the university level (for example, dental technician or engineering technician)"
CIC defines bachelor as: "Bachelor's degree an academic degree awarded by a college or university to those who complete the undergraduate curriculum; also called a baccalaureate. Examples include a Bachelor of Arts, Science or Education. "
So the keyword is university degree. My question to you:are these diplomas were awarded from a recognized universities?
If your answer is yes, I believe you have a chance to get 22 points even though it's 2 yr diploma plus 1 yr in airline, nonetheless, the final call will be for the CIC officer.
Cheers
Mezo