If you're close to getting the fruits, just put aside at least 1.5 hours to search for the fruit. Look at the list and go to each spot and beyond. Don't skip any spots.
I kept skipping one spot on my search, and the one of 2 times I went there, I didn't go back far enough. But the last time I went, I went past where I first thought it was, and WALA!
Needs to find something productive to do with his time...