Perhaps you should try some spelling variations:
british biochemistry » brain biochemistry, nutrition biochemistry, binding biochemistry
philippa cohen » philipp hohn, phillips cohen
philip hen » philip henry, philip hans, philip hunt

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: ((philippa cohen) OR (philip hen)) (british biochemistry).
• Adding a wildcard symbol may retrieve word variants: ((philippa cohen) or (philip hen)) (british biochemistry)*.