Perhaps you should try some spelling variations:
"radio science stories a:, applied sciences" » "radio science series a:, applied sciences", "radio science theories a:, applied sciences", "radio science stories _:, applied sciences"
"radio science studies e:, applied sciences" » "radio science study e:, applied sciences", "radio defence studies e:, applied sciences"

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 stories a:, applied sciences") OR ("radio science studies e:, applied sciences"))*.
• Removing quotes may allow a broader search: (( radio science stories a:, applied sciences ) or ( radio science studies e:, applied sciences ))*.