Seeking Los Angeles EDs with "Dal Corso" surnames in 1950 Census

I am finding it tedious in the extreme to use the GUI interface.

There are not that many Dal Corso surname listings.

The GUI automatically provides all the Dals, Dales, etc. so expands the volume of unwanted hits because the "exact" option is not exact.

It will do only one ED at a time.

I want to go over all in Los Angeles in 1950.

I opened an AWS account to use it, but I am not sure the OCR processed names are available. Is there a way to get OCR and large batches of names processed at the same time?

that is for starters. If I can be successful I want to find the children's names as well.

Thank youi