USE lowercase TEXT
When in doubt, use lowercase text. When you use lowercase, the search service finds both upper and lowercase results. When you use upper case text, the search service finds only upper case.
EXAMPLE: When you search for urethane, you'll find Urethane, urethane, and URETHANE in your result pages. However, when you search for Urethane, you'll only see Urethane in the result pages.
INCLUDING OR EXCLUDING WORDS:
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 polyurethane but not plural component, try +polyurethane -plural.
EXPAND YOUR SEARCH USING WILD CARDS (*):
By typing an * at the end of a keyword, you can search for the word with multiple endings.
EXAMPLE: Try roof*, to find roof, roofing, roofers, etc.