If you completed more than 1 program
You may be able to get a PGWP that combines the length of each program.
Each of the programs you completed must be
PGWP-eligible and
at least 8 months in length
You can’t get a PGWP if you already had one after completing an earlier program of study.
但是加拿大移民官网上好像没有说两个program之间的间隔时间要求诶