It's important to note that Bella Swan's attempts to see Edward Cullen's thoughts were never successful, and they were more a result of her obsessive desire to connect with him than actual attempts to use her powers.
Here's why:
1. Bella doesn't actually have the power to see Edward's thoughts. She's human, and Edward is a vampire. The ability to read minds is a vampire power, not something humans can learn or develop.
2. The idea of Bella trying to see Edward's thoughts is a misunderstanding of the series' themes. Bella's attempts to "see" Edward's thoughts were more about her intense yearning to understand him and the complexities of their relationship. They weren't literal attempts to read his mind.
The book focuses on the emotional struggles and complexities of Bella's yearning for Edward, not on her actual attempts to access his thoughts. If you're referring to a specific scene or event, please provide more context.