I'm trying to find questions that I can answer. So I reviewed advanced search help page, and I found
answers:0 which helps me avoid questions that already have answers and
locked:false to avoid locked questions.
What I would like to do is limit questions to those that have one of the tags in a list. For example, if I search for
[python] [php], then I only get questions that have both tags. How do I get those that have either one?