Perhaps you should try some spelling variations:
"radio science services 1:, physics" » "radio science service 1:, physics", "radio science overview 1:, physics", "radio voice services 1:, physics", "radio science services 10:, physics", "radio science services 12:, physics", "radio science services 14:, physics"
"radio science series 10:, physics" » "radio science stories 10:, physics", "radio science theories 10:, physics", "radio sciences serious 10:, physics", "radio science series 3:, physics", "radio science series 2:, physics", "radio science series 30:, physics", "radio science series 20:, physics"
"radio science series 1:, physics" » "radio science stories 1:, physics", "radio science theories 1:, physics", "radio sciences serious 1:, physics", "radio science series 3:, physics", "radio science series 2:, physics"

Try widening your search to All Fields.

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: (("radio science series 10:, physics") OR ((("radio science series 1:, physics") OR ("radio science services 1:, physics")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"radio science series 10:, physics\") or (((\"radio science series 1:, physics\") OR (\"radio science services 1:, physics\"))))".
• Removing quotes may allow a broader search: (( radio science series 10:, physics ) or ((( radio science series 1:, physics ) OR ( radio science services 1:, physics )))).
• Adding a wildcard symbol may retrieve word variants: (("radio science series 10:, physics") or ((("radio science series 1:, physics") OR ("radio science services 1:, physics"))))*.