Perhaps you should try some spelling variations:
chemistry specimen » chemistry sediment, chemistry special, chemistry specific
chemistry species » chemistry special, chemistry series, chemistry specific
chemistry spaces » chemistry space, chemistry snakes, chemistry stacey

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "\"((\\"advances in ((chemistry species) OR (chemistry spaces))\\") or (\\"advances in chemistry specimen\\"))\"".
• Removing quotes may allow a broader search: (( advances in ((chemistry species) OR (chemistry spaces)) ) or ( advances in chemistry specimen )).