Messages Audit Log Query

Hello,

My question is about Symantec Mail Gateway 10.5.1.

In the Messages Audit Log, what is the correct syntax to query the subject line?

Is there any Wildcard Charactere * % . 

Single Quote

Double Quote

AND OR

Let say I want to find all email having this exact subject "This a test"

How can I do it?

Right now it seems that it doesn't take the double quote, so I had to type

this is a test

but it look like it us OR because it return message having one of this word but not the extact subject

Mandatory Filter: Subject

Mandatory Filter Value: this is a test

Thank,