I'm trying to use the Advanced Search API of Stack Exchange.
The documentation on that page says the
tagged parameter should contain
a semicolon delimited list of tags, of which at least one will be present on all returned questions.
This implies that the list of tags will be applied with an
OR condition. But the list of tags is applying an
AND condition, i.e. the questions in the results are containing all the tags instead of at least one of the tags.
Here is a link to an example query to demo the same, where the query requests for questions tagged for
angularjs, but the results contain only questions that have both the tags.