Searching Twitter

I searched twitter for the word "library" and got a lot of people who used the word "library" in their tweet which was rather irrelevant to what I was hoping to see but then again the word is broad and it could be why it had irrelevant search result. I then used Tweetgrid search to search for the same exact word which is "library" and same thing I ended up getting a big list of people who has used "library" in their tweet. I must say, Tweetgrid is rather different as it has a live feed where it updates the list that you are currently viewing as each user adds the word you are searching for.