Perhaps you should try some spelling variations:
vision linear » piston linear, emission linear, motion linear
town library » open library, gson library
own library » open library
von linear » non linear, von linearen

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 linear) OR (von linear))) OR (((own library) OR (town library))))%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22theory and ((((vision linear) OR (von linear))) or (((own library) or (town library))))%22".
• Adding a wildcard symbol may retrieve word variants: %22theory and ((((vision linear) OR (von linear))) or (((own library) or (town library))))%22*.