The insurance company helped him with the recovery of his stolen jewelry.

recovery 是名词，来自动词 recover（恢复、找回）。re- 是前缀表示"重新"，cover 表示"覆盖、获得"。合起来指"重新获得"或"恢复"的过程。 在句中特指"找回被盗物品"这一具体恢复过程。