Perhaps you should try some spelling variations:
nano science » radio science, nanoscience _, do science
nato science » radio science, national science
2c physics » 2d physics, 20 physics, 27 physics
22 physics » 2.2 physics, 2 physics, 12 physics
series b » series 2, series 1, series 10

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: %((nano science) OR (nato science)) series b%3a%((2c physics) OR (22 physics))%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%((nano science) OR (nato science)) series b%3a%((2c physics) or (22 physics))%22".
• Adding a wildcard symbol may retrieve word variants: %((nano science) OR (nato science)) series b%3a%((2c physics) or (22 physics))%22*.