Many times we lose things. Some we can live without and other things cause a lot of stress. Maybe you have lost your wallet. Or maybe you have lost a piece of jewellery.
Whenever I cannot find something or have lost it, I read the following, at any time of the day or night, wherever I am:
Surah Kawthar three times with the intention of finding the lost object.
Insha Allah, you will be directed to find the object in a few minutes or 24 hrs or so. No matter how long it takes, you will find it if you have read the Surah thrice with the intention and sincerity.