Quick Search Box for Android is a very handy system-wide search feature that's available from your device's home screen.

To enable searching of your Remember The Milk tasks and notes on your device using Quick Search Box for Android:

1. On your device, go to Settings > Search > Searchable items.
2. Check 'Remember The Milk' to enable (if not already enabled).

Once enabled, you can search for task names or use the advanced search criteria in your device's search box.

Users running Android Jelly Bean will need to follow a slightly different set of steps:

1. On your device, open the Google Search app.
2. Press the Menu button, then tap Settings > Phone Search.
3. Check 'Remember The Milk' to enable (if not already enabled).

When searching, Jelly Bean users will need to specify that the phone itself should be searched. You can do this by either:

1. Typing the first few characters of your search, then tapping Search Phone, or,
2. Entering your search, swiping up then back down to reveal the search footer, then swiping the footer left and tapping Phone.