Redirect part of URL?

Question

URL Handling

Hello!
The engine has changed on the site, some urls have changed. Hence the question: how to change the url part correctly?
You need to change /tag/word1 word2 to search/?q=word1 word2
This problem does not occur if there is only one word in the link, there is a space between the words.
Thanks in advance!

Answer 1

(/tag/word1 )(word2) to search/\?q=$1$2
each buck is a brace on top, buck number is brace number