fulltext query only works "with query expansion"

I am trying to build a very basic fulltext search app in php. I have found an example here Mysql fulltext search so I used it to build my own.

This is my table/data (field types are text)

name                                                            site result
RRR1 COS COSMETICS P R15-500 000847719903 20110607 094742.VER   RRR1 P
RRR3 BIST MIDDLEWARE P R22-200 029051946829 20110607 101331.VER     RRR3 P
RRR2 PRE PREHEAT F R16-500 000897546214 20110607 085111.VER     RRR2 F
RRR1 COS COSMETICS P R16-300 000899331425 20110607 091337.VER   RRR1 P

This is my index

ALTER TABLE automation_search_test ADD FULLTEXT search_idx (name ,site)

This is my query

SELECT * FROM automation_search_test WHERE MATCH (name,site) AGAINST ('RRR1'开发者_Go百科 with query expansion);

I have however a few problems:

1. If I remove with query expansion, the query returns an empty set
2. If I add the RESULT column to my fulltext index, the query returns an empty set after I change my SQL to this

SELECT * FROM automation_search_test WHERE MATCH (name,site,result) AGAINST ('RRR1' with query expansion);

Is my index incorrectly setup? Is there an issue with the data?

I welcome any input you have. Thanks.

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Not enough data was my problem. Mysql documentation clearly explains it. Thread closed.