Hello Hai,My family and I had CSQ in 2016 and applied PR to the Federal last Oct. 2017. There is no response so far. I read from CIC website which states that PR process can take up-to 43 months.
So far it is a long time from CSQ to PR in your case. I know some friends settled in Montreal aOlready and they processed by themselves but their cases are not longer than yours. I know that, after CSQ you can apply for Work Permit that your family can move to Quebec for working. Have you tried?
P.S: if you are Vietnamese and are in HCMC, please keep in touch to share experience and timeline. My Skype: chau.duong