If you are looking for a specific phrase, just typing it into the Advanced Body Text search will probably not get you the results you were hoping for. The search will bring back agendas and minutes that have all the words you entered, but those words most likely will not be in the order you intended or even anywhere near each other.
For instance, say you had a very specific search query in mind such as: christmas tree lights 2009

Your results will bring back agendas and minutes that contain christmas, tree, lights, 2009 etc. Probably not what you were hoping for, to say the least.

However, using quotation marks around your phrases takes care of this problem. When you use quotation marks around a phrase, you are telling the search to only bring back pages that include these search terms exactly how you typed them in order, proximity, etc.
For example: "christmas tree lights 2009"

Your search results now will only bring back agendas and minutes that have all these words in the exact order that you typed them in. This little trick will save you a lot of time and frustration.