Type the keyword or phrase in the search box. Select the section where you want to search for a document. A word must consist of at least three letters

• If you want to find a document that contains several keywords,
  use the field "Contains all the keywords".
• If you want to find a document that has any of the keywords,
  use the field "Contains any of the keywords"
• If you want to exclude certain keywords from your search results,
  use the field "Does not contain the keyword”

• capitalization
• punctuation marks