I am looking for some guidance how to set up several searches for property management. I have fields 'Date', 'Roof', & 'Garden' to name but a few. I have 2 different search criteria:
1) I wish to find properites build at a certain date (say 1970), with flat roof and Garden,
I beleive the way forward is by using Set Field syntax,
Set Field [house::Date; globals::Date]
Set Field [house::roof_type; globals::Roof]
Set Field [house::Plot; globals::Plot]
Perform find 
Presumably the system returns only the properties that match all 3 criteria?
I now wish to find any property built in 1970 AND any property with a garden AND any property with a flat roof. So this set of results will list any that satify any one of the criteria. Please can you help me with the syntax ?