Advanced search - hidden query filter

I want to restrict the default results of a search with advanced search.

I manage filter on a resource template like this:

But I have troubles with the sdo:publicationType (Values taken from a Custom Vocab)

With a dropdwn menu, the results are filtered and the URL is
https://mysite/ricerca_home?q=mykeyword&sdo%3ApublicationType=Cataloghi&submit=

The config is the following

But I do not manage to filter by this field by default (Hidden query)

Thanks for your answers

I don’t have any special knowledge of the Advanced Search module but I imagine that you want to be putting this instead:

sdo%3ApublicationType=Cataloghi

or even

sdo:publicationType=Cataloghi

Having %3D instead of = being the core problem.

Thanks for your answer

sdo:publicationType=Cataloghi

is displayed on the configuration panel as

sdo%3ApublicationType=Cataloghi

after saving data
and

sdo%3ApublicationType=Cataloghi

and when using the search engine the parameter is not considered