What do I not understand?
Are you talking about the required expression? If so, you've got something malformed there -- notice the two "AND"s in a row. You might be able to fix this with the editor, or you could remove and re-create the entire expression (which should be pretty easy since you'd be able to re-use the conditions you already created -- just rebuild the larger expression).
This is probably what is causing the unexpected evaluation result.
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Two ands, I will give it a try, thanks
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I think it works, sharp sight, thanks 
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