Perhaps you should try some spelling variations:
virtual library » virtual laboratory
vision library » design library, gson library, vision linear
visual library » visual literacy, visual binary, visual lidar
asio library » asic library, basis library, basic library
town library » own library, gson library
open library » opencv library, chosen 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 (asio library))) OR (((visual library) OR (virtual library))))) OR (((town library) OR (open library))))%22.
• Adding a wildcard symbol may retrieve word variants: %22theory and ((((((vision library) or (asio library))) or (((visual library) or (virtual library))))) or (((town library) or (open library))))%22*.