When you search in Twitter, the results depend on how you search.
In the screenshot, I’m looking at searches for CalTrain (the local San Francisco Bay Area commuter train):
- 1st column: Results for @CalTrain
- 2nd column: #CalTrain
- 3rd column: CalTrain
You can see none of the search results match.
That’s pretty bad. So you need to track all three keywords (with @, with #, and none) to follow the company.