Perhaps you should try some spelling variations:
virtual library » virtual laboratory
vision library » design library, vision linear, visual library
visual lidar » visual aids, visual aid, visual light
gson library » open library, town library
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 ((((vision library) OR (((((virtual library) OR (visual lidar))) OR (visual binary))))) OR (((gson library) OR (own library))))%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22theory and ((((vision library) or (((((virtual library) or (visual lidar))) or (visual binary))))) or (((gson library) OR (own library))))%22".
• Adding a wildcard symbol may retrieve word variants: %22theory and ((((vision library) or (((((virtual library) or (visual lidar))) or (visual binary))))) or (((gson library) OR (own library))))%22*.