The term 'Searched High and Low' is often used to describe an exhaustive search for something. This search can be represented by two crossword solutions: 'Scoured' (7 letters) and 'RUMMAGED' (8 letters). Scoured means to have cleaned or examined something thoroughly, while RUMMAGED means to have searched through something in a disorderly manner. Both words imply a thorough search, which is what the phrase 'Searched High and Low' implies.