The VLT (voice log translator) RTMT plugin might make it easier to sift through the logs. At one point at least there was a standalone version too, but I honestly have all but forgotten about it so it's been awhile. I typically use notepad++ which can search through multiple open files opening a new pane at the bottom of the window with all of the matches broken out by file. So as long as the text to be searched has the search string, you can then copy the text from the match window. Alternatively, if you're handy with regular expressions (I am not), you can also search/replace using regex's. Here's a primer I ran into the other day:
http://markantoniou.blogspot.com/2008/06/notepad-how-to-use-regular-expressions.html