"Search" is an excellent option. We use a 3rd party solution which returns solid results. You can use product names, model numbers, part numbers, or even product features.
To make sure that a specific word is always included in your search topic, place the plus (+) symbol before the key word in the search box. To make sure that a specific word is always excluded from your search topic, place a minus (-) sign before the keyword in the search box.
Example: To find recipes for cookies with oatmeal but without raisins, try "recipe cookie +oatmeal -raisin".
By typing an * within a keyword, you can match up to four letters.
Example: Try wish* to find wish, wishes, or wishful.