Perhaps you should try some spelling variations:
virtual library » virtual laboratory
boston library » cotton library, button library, boston february
visual library » visual literacy, visual binary, israel library
asio library » asic library, basis library, basic library
visual lidar » visual aids, visual aid, visual light
own library » open library

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: %22theory AND ((((((boston library) OR (asio library))) OR (((((visual library) OR (visual lidar))) OR (virtual library))))) OR (own library))%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22theory and ((((((boston library) or (asio library))) or (((((visual library) OR (visual lidar))) or (virtual library))))) or (own library))%22".
• Adding a wildcard symbol may retrieve word variants: %22theory and ((((((boston library) or (asio library))) or (((((visual library) OR (visual lidar))) or (virtual library))))) or (own library))%22*.