Perhaps you should try some spelling variations:
"nato science overview b:, physics" » "nato science review b:, physics", "nato service overview b:, physics", "nato change overview b:, physics", "radio science overview b:, physics", "nato science overview 1.1:, physics"
"nato science overview 1.2:, physics" » "nato science review 1.2:, physics", "nato service overview 1.2:, physics", "nato change overview 1.2:, physics", "radio science overview 1.2:, physics", "nato science overview 1.1:, physics", "nato science overview 2:, physics"
"national science overview 1.2:, physics" » "national science review 1.2:, physics", "national service overview 1.2:, physics", "national change overview 1.2:, physics", "natural science overview 1.2:, physics", "spatial science overview 1.2:, physics", "animal science overview 1.2:, physics", "national science overview 1.1:, physics", "national science overview 2:, physics"

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (("nato science overview b:, physics") OR ((("nato science overview 1.2:, physics") OR ("national science overview 1.2:, physics"))))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"nato science overview b:, physics\") or (((\"nato science overview 1.2:, physics\") OR (\"national science overview 1.2:, physics\"))))*".
• Removing quotes may allow a broader search: (( nato science overview b:, physics ) or ((( nato science overview 1.2:, physics ) OR ( national science overview 1.2:, physics ))))*.