Perhaps you should try some spelling variations:
chemistry special » chemistry social, chemistry chemical, chemistry section
chemistry species » chemistry specimen, chemistry spaces, chemistry specific
chemistry series » chemistry studies, chemistry sources, chemistry sars
chemistry africa » chemistry metrics, chemistry after, chemistry atomic
chemistry erich » chemistry metrics, chemistry ethics, chemistry eco

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