Because you've got a stemmer in your analysis chain for those fields. If you want unstemmed terms, remove the stemmer, or copyField to a different field to use for the terms component.
Erik On Aug 9, 2011, at 10:20 , Royi Ronen wrote: > Hi, > I am using the terms component. > Many times an 'e' at the end of the word is missing. > E.g., it gives 'googl' instead of 'google', 'youtub' instead of 'youtube'. > The problem does not exist for some other words ending with 'e'. > Any ideas why it happens? > Royi