Karma sounds more like a cycle to me

When someone do something bad, eventually he will deal with bad things
This is partly cause by the behaviour of that someone
If u are a fierce people and u treat people badly, eventually people will not like u and tend to kick u out from the community.
While if u are a good person, many people will like u and u will have a good time with everyone.

This is just one simple example

However karma cannot say to be entirely true because it happen that when people do good things always and being a good person, he still receive bad luck like other people did

More sounds like people judging from the sirface without knowing the true fact, not much to do with karma

This term exist in buddhism teaching,
im not one so i dont know further bout that