Customers will go to a website, search for a common basic term and get “No Results”. This is a bad start for your website. You are lucky if they might try another word to search, but if it fails too, most visitors will back out and not return. They figure if the search does not work, why trust the rest of the website.
Pay attention to all of the terms that are keypunched into your system from your visitors and make sure in the future to provide some answers or at least further questions to point to a subject that is included and that will yield results. Enter slang terms for the items you sell. You may want to enter misspelled words that point to the correct word if a few terms seem to fail repeatedly because of spelling. It is irrelevant whether you feel the terms are no good or not applicable. You have disappointed a potential customer enough that he or she probably will not come back. Enter all of the terms entered by visitors into your website’s database and provide future answers for these terms even if you must offer other website suggestions to point the buyer to a site featuring the item he wants. If nothing else, offer other possible terms. Ask the visitor if they actually meant something else by at least offering them some related or close results to pick from.