I added a new calendar using my laptop, but my Android phone can't find it after syncing 1. The newly added calendar did not show up in My Calendars. 2. Re-syncing my account (by de-selecting "sync calendar" and re-selecting it) did not fix the problem. 3. Clearing my data (by going to main settings > applications > calendar data > clear data) and re-syncing (by the same steps as #2) did fix it!