Usage patterns
〈物〉がちらほら見えるto be visible here and there
You can see houses here and there in the distance.
〈物〉がちらほら咲くto bloom sparsely, here and there
The cherry blossoms in the park have started to bloom here and there.
〈事〉がちらほら聞こえるto occasionally hear something
Laughter occasionally drifts in from the classroom.
白髪がちらほらするto have a few gray hairs showing here and there
Lately my father has a few gray hairs showing here and there.