Perhaps you should try some spelling variations:
science theories » science theory, science three
theories ii » theories 1, theories 2
stories ii » stories _, stories a, stories 6
stories 2 » stories _, stories a, stories c

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 ii) OR (stories 2)):, mathematics, physics AND chemistry\") or (\"radio science theories ii:, mathematics, physics AND chemistry\"))".
• The words AND, OR and NOT may confuse the search; try adding quotes: "\"((\\"radio science ((stories ii) OR (stories 2)):, mathematics, physics and chemistry\\") or (\\"radio science theories ii:, mathematics, physics and chemistry\\"))\"".
• Removing quotes may allow a broader search: (( radio science ((stories ii) OR (stories 2)):, mathematics, physics and chemistry ) or ( radio science theories ii:, mathematics, physics and chemistry )).