Perhaps you should try some spelling variations:
medical sciences » social sciences
science stories » science studies, science theories
science series » science services, science theories, sciences serious
nato science » radio science, national science

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 c:, mathematical AND medical sciences ) OR ( nato science stories a:, mathematical AND medical sciences )).
• Adding a wildcard symbol may retrieve word variants: (( nato science series c:, mathematical and medical sciences ) or ( nato science stories a:, mathematical and medical sciences ))*.