Perhaps you should try some spelling variations:
chemistry specimen » chemistry sediment, chemistry special, chemistry specific
chemistry species » chemistry special, chemistry series, chemistry spaces
chemical studies » biochemical studies, clinical studies, numerical studies

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 ( advances in chemical studies ))) OR ( advances in chemistry specimen )).
• Adding a wildcard symbol may retrieve word variants: (((( advances in chemistry species ) or ( advances in chemical studies ))) or ( advances in chemistry specimen ))*.