Perhaps you should try some spelling variations:
chemistry specimen » chemistry sediment, chemistry specific, chemistry experiment
chemistry species » chemistry specific, chemistry studies, chemistry space
chemistry special » chemistry social, chemistry chemical, chemistry section
chemistry series » chemistry studies, chemistry sources, chemistry erich
chemistry africa » chemistry metrics, chemistry after, chemistry atomic
chemistry spaces » chemistry space, chemistry snakes, chemistry stacey

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