Here in the presence of speaker.
chaya implies the speaker has discovered it and is holding it; cha dya/daw implies the speaker is pointing to the object in touching distance
Cha kami dya.
Here we are here.
Cha dyaw adekeyaw a tomanyis.
Here (close by) is the child crying.
Cha dyaw chichwasen kwaw.
Here (close by) is what I am searching for.
Chaya (dya).
Here it is (I'm holding it.)