Can I search github labels with logical operator OR?

Question

UPDATE as of 2021

Now you can search using an OR operation. Please see the answer by @VonC

Github does not support searching the labels that way. The searching for issues is considered to be an “AND” instead of an “OR” .

Here’s a repository used to try this out.

Example demonstrating github supports “AND” in search

My expectations

All the issues that are enhancement, feature or both should appear..

Actual result

Only the ones which were both were shown.

Hence it does not support OR operator.

UPDATE

Another tedious hack around this could be remove the unwanted labels using a -(minus) symbol before the label. Look at the following example

label:enhancement -label:bug -label:foo -label:bar

This will list all the items not having foo, bar and bug as a label on them. This will work but can become tedious if labels are too many.

Filtering issues containing only the enhancements