By default, a search for more than one word will be treated with an OR relationship.

e.g. if you enter steel brush in the search form, you will get many results; some that contain both steel and brush, some that contain only the word steel and some that contain only the word brush.

If you are searching for an item that has more than one word, use quotes around the phrase.

e.g. searching for "steel brush" would return a small number of results because it will only find results where the words steel and brush are together and in the same order.

To search for items where you are concerned about more than one word but not necessarily the order of the words, use the AND operator.

e.g. searching for steel AND brush would return results where both steel and brush are present but not necessarily together or in the same order.

You don't need to worry about variations of a word.

For example if you search for steel brushes the search engine will treat it as steel brush.