Eagle Part Library - Pico

Add a * to espruino in 1 - so espruino*. Then hit enter.

Or try removing espruino from 1 and then manually looking for the espruino_pico library.

The other option is:

• Put espruino_pico.lbr in your project folder
  
• In Control panel, navigate to it, and click the down arrow to expand espruino_pico.lbr
  
• Find the outline you want (maybe ESPRUINO_PICO_HALFSMD) and then just click and drag it onto your Schematic (not the board layout).
  
  

That's what I usually do - it's much easier than fighting with the 500 libraries in the Add... window. The search there is a disaster and it's easy to miss what you're looking for unless you use wildcards.