Yeah - it would be nice if the midi clips weren't so invisible to us, but for me I generally don't have a giant bunch of midi clips for the same section in a song, so I don't have much of an issue with having to locate a particular midi clip.
And to the original poster: I understood the question as being on locating an audio clip when you have an idea of what is in the clip's name - and I don't quite get what wouldn't work in finding them by searching the audio folder, since they are all listed by name there.
Bob Bone
Wisdom is a giant accumulation of "DOH!"
Sonar: Platinum (x64), X3 (x64)
Audio Interfaces: AudioBox 1818VSL, Steinberg UR-22
Computers: 1) i7-2600 k, 32 GB RAM, Windows 8.1 Pro x64 & 2) AMD A-10 7850 32 GB RAM Windows 10 Pro x64
Soft Synths: NI Komplete 8 Ultimate, Arturia V Collection, many others
MIDI Controllers: M-Audio Axiom Pro 61, Keystation 88es
Settings: 24-Bit, Sample Rate 48k, ASIO Buffer Size 128, Total Round Trip Latency 9.7 ms