Meta Stack Exchange is where users like you discuss bugs, features, and support issues that affect the software powering all 157 Stack Exchange communities.

What is meta?
Here's how it works:
  1. Any Stack Exchange user can ask a question
  2. The community provides support, votes on ideas, and reports bugs
  3. Your voice helps shape the way Stack Exchange operates

Search supports filtering by tags intersection e.g., [python] [timezone]. It finds posts that have both tags. See Filtering questions by multiple tags.

Search supports filtering by tags union e.g., [datetime] or [timezone]. It find posts that have either of the tags. See Advanced Search Options Syntax: Multiple Tags, And Vs. Or.

It is possible to do both. For example, to find posts that have [python] tag and have either [datetime] or [timezone] tags: [python] [datetime] [or] [timezone] [python]. Note: It is necessary to repeat [python] and it is necessary to use brackets around OR. See Search for questions tagged [A] and also (tagged [B] or [C]).

Could we write it as [python] ([datetime] or [timezone]) instead?

searching using both “and” and “or” (sum-of-products or product-of-sums) demonstrates that [python] ([datetime] or [timezone]) is:question already works: it shows relevant question despite incorrect "tagged with" on the right. Note: is:question is necessary.

Query on data stackexchange: Find [A] ([B] or [C]).

Related: How do active answerers find questions to answer?

share|improve this question
Just BTW, I once raised this in a comment on some other answer, and a dev said the tag search backend could handle parens, but the frontend had trouble displaying them. – michaelb958 May 17 '14 at 8:00

You must log in to answer this question.

Browse other questions tagged .