I think you'd need multiple prompts if you want multiple contains filters. So your filter would probably end up looking something like:
[code]
([Column] contains ?pPrompt1? and ?pPrompt1? is not missing)
or ([Column] contains ?pPrompt2? and ?pPrompt2?...
[code]
([Column] contains ?pPrompt1? and ?pPrompt1? is not missing)
or ([Column] contains ?pPrompt2? and ?pPrompt2?...