Thanks Michael. I've read those two pages, many many times. I can't find where it talks about the ability to combine multiple queries into a single string.
From the guides, I interpreted it as meaning that this query syntax was not allowed and the last query in the string should only have two " )) " and the first should have an extra " ( " for each additional query at the start, etc. Please confirm the logic behind combining two or more queries into one string?
My New assumption is you need to include an additional outer parenthesis on both sides.
Query 1: (Project.Name = "Blue Team")
+ Query 2: ((Owner.UserName = "tom@acme.com") AND (Iteration.Name = "October Phase One"))
= Combined 1 & 2: ((Project.Name = "Blue Team") OR ((Owner.UserName = "tom@acme.com") AND (Iteration.Name = "October Phase One")))