Perhaps you should try some spelling variations:
chemistry specimen » chemistry sediment, chemistry special, chemistry specific
chemistry species » chemistry special, chemistry series, chemistry specific
chemistry studies » chemistry study, chemical studies
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 species) OR (chemistry spaces)) ) OR ( advances in chemistry studies ))) OR ( advances in chemistry specimen )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((( advances in ((chemistry species) OR (chemistry spaces)) ) or ( advances in chemistry studies ))) or ( advances in chemistry specimen ))".
• Adding a wildcard symbol may retrieve word variants: (((( advances in ((chemistry species) OR (chemistry spaces)) ) or ( advances in chemistry studies ))) or ( advances in chemistry specimen ))*.