Perhaps you should try some spelling variations:
european southern » europe southern, european software, european youth
court observatory » county observatory, core observatory, coude observatory
eso astrophysics » from astrophysics, nasa astrophysics, dust astrophysics

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: (( eso astrophysics symposia, european southern observatory ) OR ( eso astrophysics symposia, european court observatory )).
• Adding a wildcard symbol may retrieve word variants: (( eso astrophysics symposia, european southern observatory ) or ( eso astrophysics symposia, european court observatory ))*.