There are 3 types of Searches:

1. STRING Search: input any number of characters you would like to search for, spaces are OK.
   (ex: 6 inch will find 6 inch boots and 6 inch knives)
   This is a search string when you search for a
   string RED, products with coveRED and zippeRED will be returned.
   
   Case does not matter; RED is shown in upper case for illustration.
    
2. WORD Search: spaceWORDspace
   (ex: boot )
    
3. COMBINATION Search: search strings with
   a [+] (PLUS sign) between the search strings
   (ex: 6 inch+boot) (ex: 6 inch+boot+zipper+black)
   You can have any reasonable number strings/words.
   
   
   3XL+BDU will find all products that are 3XL and are BDU related.