How to search for subset of string

Hi,
I'm trying to implement Oracle text in 8i and 9i to search for a given string or a subset of string.
For example, if the given string="Database Technology", I would like intermedia to first search for the exact string - "Database Technology",
if not found, then search for either "Database" or "Technology".
I'm only able to search for the exact string ("Database Technology") so far by using the contain clause. I'm not able to get Oracle Text to return me any records that also contains "Database" or "Technology" if the exact match "Database Technology" cannot be located.
Any help is very much appreciated.
thanks.
elain

You need to use the ACCUM operator. It raises the score based on the the frequencies of more than one word. Here are the contents of my TEXT1 test table:
TEXT
database
server
database server
database blah blah database
database blah blah server
select score(1), text1.* from text1 where contains(text,'database ACCUM server ACCUM database server',1) > 0 order by score(1) desc;
and here are the results:
SCORE(1) TEXT
68 database server
34 database blah blah server
2 database blah blah database
1 server
1 database
You may want to put a multiplier on the "database server" phrase's score to increase the score on when the complete phrase is found. That looks like this, for example:
select score(1), text1.text from text1 where contains(text,'database ACCUM server ACCUM database server*3',1) > 0 order by score(1) desc
Tom Best

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