Nowhere to be found/seen
Definition 1 of 1
Pro Tip 1/3Emotional Impact
This phrase often implies frustration or disappointment when something expected cannot be located. 
He promised he'd be here for my birthday, but he was nowhere to be seen.
Pro Tip 2/3Literal or Figurative
Can be used for physical items not present or situations where someone's involvement is expected but absent. 
When it was time to clean up, her help was nowhere to be found.
Pro Tip 3/3Emphasis on Absence
The phrase emphasizes the notable absence of someone or something, often when it causes inconvenience. 
The band was supposed to play at 9 pm, but they were nowhere to be seen.