The Add Match section function provides two options, Any and All. Any is used for OR filtering and filters out models that match any filtering rule in the Add Match section. All is used for AND filtering and filters out models that match all filtering rules defined in the Add Match section.
In the following example, ANY is used to return all underground transformers and all transformers with greater than 50 kVA. 
In the following example, ALL is used to return only underground transformers with kVA greater than 50. 