How to use google search
You can use a Google to search the Homebrewtalk.com forum.
Entering the following term in the Google serach box: CO2 site:www.homebrewtalk.com will render the following page: http://www.google.com/search?q=CO2+site%3Awww.homebrewtalk.com
The Google search is a useful alternative to teh native forum search for several reasons. Primarily, the forum software search has an imposed restriction on terms of 3 characters or less or terms that are over 20 characters. This restriction is a performance related measure.
Example: Searching for carafoam-carapils-maltodextrine will yoed the following error.
Sorry - no matches. Please try some different terms. The following words are either very common, too long, or too short and were not included in your search : carafoam-carapils-maltodextrine
Other common brewing terms that will yield a search error: O2 Keg Dry Hop "Hop Rod Rye"
Note that the inclusion of quotation marks does not matter in the forum search.