Perhaps you should try some spelling variations:
emission linear » emission line, emission lines, emission near
vision library » design library, vision linear, visual library
town library » open library
gson library » open 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 (emission linear))) OR (((own library) OR (((town library) OR (gson library))))))%22.
• Adding a wildcard symbol may retrieve word variants: %22theory and ((((vision library) or (emission linear))) or (((own library) or (((town library) or (gson library))))))%22*.