What will be the best word or term to use in that kind of situation?
For example, I am currently looking for my Nursing book inside my house but after days of searching, still no success and I already gave up. However, few weeks or months later I accidentally saw it under my bed when I am cleaning up my room.
I am thinking of the word "Coincidence" but I am looking for a more precise word. Luck? hmmm. Not quite sure.