Perhaps you should try some spelling variations:
ethical committees » technical committees, ethics committee, technical committee
ethics commitee » ethics committee, ethics commitments, ethics competence
ethics computer » ethical computer, ethics computing, ethics chapter

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: ((((((ethics commitee) OR (ethics computer))) OR (ethical committees))) OR (ethics committees))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((((ethics commitee) OR (ethics computer))) or (ethical committees))) or (ethics committees))*".