Mysql MATCH AGAINST - IN BOOLEAN MODE problem

I need to find the following string: 'c++'

My sql query look like this:

SELECT *
FROM shop_product
WHERE
   MATCH(shop_product.name, shop_produc开发者_C百科t.product_model, shop_product.keywords, shop_product.part_number, shop_product.upc, shop_product.brand_name)
   AGAINST ('c++' IN BOOLEAN MODE))
GROUP BY `product_id`
LIMIT 0, 25

This script does not return any results even if there exists records containing that word. How to solve this?

Thanks.

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Words with less than four characters are not searched in BOOLEAN MODE or NATURAL MODE.

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"+" isn't a "word" character. Probably you have to use LIKE or REGEXP.

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You could search without BOOLEAN MODE:

SELECT *
FROM shop_product
WHERE
   MATCH(shop_product.name, shop_product.product_model, shop_product.keywords, shop_product.part_number, shop_product.upc, shop_product.brand_name)
   AGAINST ('c++'))
GROUP BY `product_id`
LIMIT 0, 25

I think the + is just for boolean mode a special character.