Combobox with search initial letter code

Good evening I would need to populate a combobox by typing the initials of an acronym.
I would like to show only those that start with what I am typing in the combobox.
In the attached example, by typing the letter M I would like only those colored in yellow in column I to appear
Thank you.

post #16

I thank you for your reply.
I found the formula that gives me the correct result.
Thank you