Yes you can,
[harry-potter] views:250 hasaccepted:1
=> 212 results
The issue you are having is that you are using a predicate that searches for answers that are accepted answers(or not) : isaccepted:1 and one that searches for questions that have a minimum number of answers(or no answers) : answers:1.
It returns no results because there are no answers that are questions, or questions that are answers, so it cant find something that is both an answer that is an accepted answer (or not) AND a question that has a minimum number of answers(or no answers).
**To get the exact result you needed, you have to change isaccepted to hasaccepted:
[harry-potter] hasaccepted:0 answers:1
=> 160+ results
