Ash continued her search as she tried her best to find a suitable Spirit to capture.
When she could not find one in one part of the surrounding area, she moved on to search for another.
She tried to avoid hunting out in the open where she would be more likely to be seen.
That choice narrowed down her options even further.
Ash was well aware that she was severely limiting herself.
Even how she hunted certain types of Spirits while leaving out others was still slightly flawed in a way.
There could always be an opposite example of there being a smaller-sized version of a Spirit that was usually much larger.
That Spirit could be mistaken as being a low-grade Spirit when it was a high-grade Spirit so it did not just apply to the common knowledge she had.
Every option that she had available to her had several points that were well known by her but they still had potential to be wrong and create troubles for her.