I've done so much looking to have found so few Piglets.
4 seconds sound clip from The New Adventures of Winnie the Pooh - Where Oh Where Has My Piglet Gone? / Up, Up and Awry (S2E7).
You can hear this line at 00:04:23.791 in the Blu-ray version of the TV Series.
Quote context
[...]
- What if we split up and looked in different places?
- Why Pooh, that's almost a good idea.
- You won't get lost, will you?
- I shall be back shortly, if not sooner.
- I've done so much looking to have found so few Piglets.
- But since I haven't found him, maybe Rabbit has. Rabbit? Rabbit!
- Oh, my! This is the spot! But I've lost the tree. And Rabbit, too!
- That Pooh Bear's been gone forever.
- I'd better get Gopher or someone to help me find him. And Piglet, and maybe even my hammer.
[...]