Customized Search Builder for Notes Client R6.5.x

Hi

I would like to know how to Customize the Search Query in Full Text Search with Multiple conditions like ‘contains’, ‘does not contain’, ‘Is Empty’, ‘Equal to’, ‘Not equal to’ in Notes Client R6.5.x.

I am able to build the query for ‘CONTAINS’ as

FIELD LASTNAME CONTAINS JOHN

But I am unable to build queries for other conditions like

FIELD LASTNAME DOES NOT CONTAIN JOHN

FIELD LASTNAME EQUAL TO JOHN

FIELD LASTNAME NOT EQUAL TO JOHN

I use the view.FTSearch mewthod to build these queries.

Any help in this regard will be of great value.

Thanks

TVS