When King Jehoiakim ordered Baruch and Jeremiah seized, why were they not found?

Answer: The LORD had hidden them

The king sent Jerahmeel, Seraiah and Shelemiah to seize Baruch the scribe and Jeremiah the prophet, "but the LORD had hidden them."

“Instead, the king commanded Jerahmeel, a son of the king, as well as Seraiah son of Azriel and Shelemiah son of Abdeel, to seize Baruch the scribe and Jeremiah the prophet. But the LORD had hidden them.”— Jeremiah 36:26 (BSB)