VMS Help SEARCH, Qualifiers, /EXACT  *Conan The Librarian (sorry for the slow response - running on an old VAX)

       /EXACT
       /NOEXACT (default)

    Controls whether the SEARCH command matches the search string
    exactly or treats uppercase and lowercase letters as equivalents.
    By default, SEARCH ignores case differences in letters.

    Specifying the /EXACT qualifier causes the system to use less CPU
    time; therefore, if you are sure of the case of the letters in
    the string, it is more efficient to use the /EXACT qualifier.