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