I just wrote a very simple chrome extension that helps you search for UI5 API more conveniently.
Here are the installation steps:
– Download the *.crx file from: http://goo.gl/7VhdXE
– In Chrome address bar type chrome://extensions
– Drag the file you just downloaded to Chrome window to install, click on Add
– To use the extension, just select the UI5 icon, enter your search term and click on the search result
– A new tab will be opened to show the search result
Hope it helps. Cheers!