RavenDB strange query result?

Question

I get a strange result on the following query:

Query: Title:(Canon) AND Title:(75-300*) AND Title:(IS)

Result: Canon EF 75-300mm Zoom lens Mk III. Superb Condition.Perfect working Order

However, this item doesn't have IS in its title.

Am I missing something?

Answer 1

The word IS is a stop word, and has been removed.