Full Text Search. In 8.3.1 How ?

["Ruben Guinez" <rubenvive(at)gmail(dot)com>]

Hello List. 

 I need to
make finding precise words or phrases in Word documents (I put this document as plain text to a field text type of a table in my database).
I'm working with PostgreSQL 8.3.1 on Linux; before, working with tsearch2-in
version 8.2.x-could find presence or absence of a word in the text
field, in reality what I need is to count the number of occurrences in
this field a word or phrase perfect (two or more words that appear in
the same order). I repeat: what we need is "counting" how many times
you see a pattern in that field type text. 
 
Be one of you who has
done something similar to me of some kind to improve what I am doing?. 
 
 
Thanks in advance.

Rubén