Canada082012 said:Thanks Guys,
This is exactly what they asked for in the letter that they sent (I will be immigrating to Canada alone myself)
Original Good Conduct Certificate(s) (or Certificate of No Criminal Record) from the police authorities of Vietnam. A certificate is required for you (and your spouse / common-law partner and each of your dependent children who is 18 years of age or older), from the police authorities in all countries where you have resided for a period of six months or more since turning 18. Residents of Vietnam should obtain police clearance certificates from the Judicial Department of your city or provincial level.
Email to contact CIC to clarify if you have already submit PCC from others countries and since then you have no further visits to those countries, I am sure they will tell you no need to resubmit, just contact visa office and tell them.