How to get finches into the garden? (explained more)

Hello,
I live in rural-ish Leicestershire with a small-medium sized garden with a stocked bird feeder. I get lots of different species daily (such as tits, pigeons, thrushes and many more) EXCEPT for finches. I have had the feeder set up in the garden for approx 6 months, and not a single finch wants to visit. Tediously, I have researched lots to get them into my garden but they simply just never appear. I know it sounds like I’m trying a lot, but I see them weekly in the trees on the road surrounding my house, so it’s not like they’re not nearby. I offer: sunflower seeds + hearts, mixed seed, suet balls, peanuts, and NYJER. My garden has 2 large conifer trees and multiple 2m shrubs. Does anyone have any advice specifically regarding how to get them to visit, even though I have everything they love? Any advice or tips (even if it’s super niche or expensive) on how to get them to visit would be super appreciated. 
Thanks