Perhaps you should try some spelling variations:
"radio science theories 3:, physics" » "radio science theory 3:, physics", "radio science three 3:, physics"
"nato science series 1:, physics" » "nato science services 1:, physics", "nato science stories 1:, physics", "nato sciences serious 1:, physics", "national science series 1:, physics", "nato science series 2:, physics"
"radio science series 1:, physics" » "radio science services 1:, physics", "radio science stories 1:, physics", "radio sciences serious 1:, physics", "radio science series 2:, physics"
"radio science series 3:, physics" » "radio science services 3:, physics", "radio science stories 3:, physics", "radio sciences serious 3:, 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 series 1:, physics") OR ((("radio science series 1:, physics") OR ((("radio science series 3:, physics") OR ("radio science theories 3:, physics")))))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"nato science series 1:, physics\") or (((\"radio science series 1:, physics\") or (((\"radio science series 3:, physics\") OR (\"radio science theories 3:, physics\"))))))".
• Removing quotes may allow a broader search: (( nato science series 1:, physics ) or ((( radio science series 1:, physics ) or ((( radio science series 3:, physics ) OR ( radio science theories 3:, physics )))))).
• Adding a wildcard symbol may retrieve word variants: (("nato science series 1:, physics") or ((("radio science series 1:, physics") or ((("radio science series 3:, physics") OR ("radio science theories 3:, physics"))))))*.