Works:
- https://stackoverflow.com/questions/tagged/c
- https://stackoverflow.com/questions/tagged/pointers
- https://stackoverflow.com/questions/tagged/pointers+c
Fails:
It treats the last case as a single tag called c+pointers
rather than two tags.
Clarification:
It generates the URL if you go to the page for c tagged questions(https://stackoverflow.com/questions/tagged/c), and then scroll down to the related tags sidebar and click on any other tag to form a tag1+tag2 filter.