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How can i limit number of products in search results ?

With our Magento Search Autocomplete and Suggest extension You can limit number of products in search restult.You can do this by login magento admin , then go to System » Configuration . Click to  Search Autocomplete and Suggest in left sidebar . Here you will see all setting of Search Autocomplete and Suggest extension. Change value  of the Show product field to limit number of products in search results.