Sentence examples for no clues from inspiring English sources

The phrase "no clues" is correct and can be used in written English
It is often used to indicate that someone or something is unable to provide any information or guidance. Example: - "The detectives were stumped as they searched the crime scene for evidence, but there were no clues to be found." - "I've been looking everywhere for my lost keys, but there are no clues as to where they could be." - "The instructions for the project were unclear and provided no clues on how to proceed."