Question Why doesn't input auto fill

I'm pretty new and i probably messed something up but if i write something like "inp" in the autofill input doesnt exist, there are only 4 options that i don't need and if I write "Input." it doesnt show the other things either like i think it should, i'm probably doing it all wrong but i'd like to know how to solve it.

P.S. : idk if it's useful to know but i selected both in the "active input handling" setting