I want to apply for admission to a PhD program in Canada. I hold a Master's degree. But when I was doing my undergraduate studies, I went to an exchange program in Canada and studied there for two semesters. I got really bad notes there, like C's, D's and even an F. In my home institution they considered only some of these notes to put them in my transcripts, the highest ones, so at the end, I had a good GPA of 3.8/4.0 in my official transcript in home institution.
Now that I want to apply for a PhD, I'm thinking in not putting the exchange in my CV, so I won't need to submit the transcript from the Canadian university, since it could affect it negatively instead of positively. But I'm afraid there could be some sort of network of Canadian universities and that they reject my application if they find out that I was hiding information. I'm also afraid that they could find some information if they google my name.
What should I do?
Addendum: The GPA in my exchange transcript is lower than the minimum required in most universities, less than 2 out of 4. Does this GPA matter or only the GPA of the transcript of my home institution matters?