What are the grammatically possible instances of using singular nouns without articles at all?

أفضل جواب: <p>I believe in a clear and perfect text of message for a purposeful communication. It becomes more ... الإطلاع على المزيد

أفضل جواب: B2B companies can use their collected data to determine who their demographics are. This can then be used ... الإطلاع على المزيد

أفضل جواب: Ghada, I agree with your opinion الإطلاع على المزيد

أفضل جواب: Market research and Marketing research both are different we can't call them the same. In marketing resea ... الإطلاع على المزيد