Term Frequency for phrases

Hi . I have phrases like brain natriuretic peptide indexed as a single token using Lucene. When I calculate the term frequency for the same the count is 0 since the tokens from the text are indexed separately i.e. brain , natriuretic , peptide. Is there a way to solve this problem and get the ter

Re: Term Frequency for phrases

t; > On Jan 8, 2010, at 5:16 AM, hrishim wrote: > >> >> Hi . >> I have phrases like brain natriuretic peptide indexed as a single token >> using Lucene. >> When I calculate the term frequency for the same the count is 0 since >> the >> tokens from th