näillä kulmilla (phrase) –
”Around these parts” or ”in the neighborhood.”
Näillä is the adessive plural of nämä, which means ”these.” (See how nämä is declined here.)
Kulmilla is the adessive plural of kulma, which means angle or corner. (See how kulma is declined here.)
Adessive case has the basic meaning of ”on” something, but can also mean ”being around it”
This sign currently on the corner of Kiasma’s building in Helsinki’s City Center reads, Nykytaidetta näillä kulmilla, which roughly translates as ”Contemporary art from around these parts.”
There seems to be a bit of a play on words going on here since kulma means corner and this is written on the corner of the building.