Are there any databases of Android services/applications & their respective descriptions?

Are there any databases of Android services/applications & their
respective descriptions?

When I'm attempting to clean up my phone's unused files and applications,
I run into a lot of cryptic items that I have no idea what their purpose
is.
For example, on my Samsung Stellar running Android version 4.1.2, there
are some items in the Application Manager that say:
ChocoEUKor
CSC
Hely Neue S
QoSSig
TwDVFSApp
I can't find any good databases, websites, or any other resources that
provide information about these "applications/services" that allow people
to search for data relevant to each item for their specific phone model.
I find it hard to believe that this information isn't already out there,
but maybe I'm not looking hard enough or have been looking in all the
wrong places.
Does anyone know if and where this information exists?
Thanks