If a coin has no volume, it means it's not wanted by people.
And if it's not wanted by people, that means it has no real use, and no "hype" around it,
Having said that, if you believe in a project, a situation like this could be a good buying opportunity
No, a coin with no volume equals no one interested in buying these coins at a low price. A good project will never let their trading volume down. They must have the initiative to create new hype. Otherwise, the project is a trash project.