O, bildiğim kadarıyla, güvenilir bir arkadaştır.
- He is, so far as I know, a reliable friend.
Bildiğim kadarıyla böyle bir sözcük yok.
- So far as I know, there is no such word.
insofar as (or that), to the extent that, to such an extent.
... very chimneys unfold as far as the eye can see ...
... and I've never really been genre-specific as far as what I listen to. There's always, ...