AbleCommerce Shopping Cart Software

I have some problem with search engine in my website. Search result doesn't true. Example, a product I insert some search keyword but in the live site, i type that keyword and press search, the result doesn't have that product.
Additional, I delete a product from my store but when i search the name of that product, the result still show this product.
How can I solve these problem?

what is the version of application you are running?
and also

Search result doesn't true. Example, a product I insert some search keyword but in the live site, i type that keyword and press search, the result doesn't have that product.

Does the search operation brings the complete products of the store?

I have solved this problem. Because I remove Category Search sidebar in the search page ^^.

But the problem: I delete a product from my store but when i search the name of that product, the result still show this product. I can't solve it. Help me.
I use AbeCommerce 7.0

It may be because of that your product belongs to more then one categories, so delete operation just removed it from the category where you deleted but left in the second one.

Thanks you very much, I have solved this problem ^^.