I might also suggest that, in addition to making the question more clear about what you're after, commenting on the existing answers might be enough for them to improve their answers. Since they've already shown a willingness to help you solve your issue, they might be able to improve their answers if they get a clear indication of why they're currently inadequate. If they know why they're not getting an accept, it is probably minimal effort to get it to that quality (depending on how much info was left out of the question originally). Plus additional activity on the post will push it up the active queue.
I know I have improved many answers when the OP clarified what I got wrong initially (whether I misunderstood the requirement or whether the original question was missing vital information).