Perhaps you should try some spelling variations:
chemistry specimen » chemistry sediment, chemistry special, chemistry specific
chemistry species » chemistry special, chemistry spaces, chemistry specific
chemistry series » chemistry studies, chemistry sources, chemistry erich

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: (advances OR advanced) in ((chemistry series) OR (((chemistry species) OR (chemistry specimen)))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(advances or advanced) in ((chemistry series) or (((chemistry species) OR (chemistry specimen))))".
• Adding a wildcard symbol may retrieve word variants: (advances or advanced) in ((chemistry series) or (((chemistry species) OR (chemistry specimen))))*.