Perhaps you should try some spelling variations:
chemistry specimen » chemistry sediment, chemistry special, chemistry specific
chemistry sources » chemistry courses, chemistry surfaces, chemistry studies
chemistry species » chemistry special, chemistry spaces, chemistry specific
chemistry series » chemistry studies, chemistry erich, chemistry sars

Try widening your search to All Fields.

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: %22advances in ((((chemistry series) OR (chemistry sources))) OR (((chemistry specimen) OR (chemistry species))))%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22advances in ((((chemistry series) OR (chemistry sources))) or (((chemistry specimen) or (chemistry species))))%22".
• Adding a wildcard symbol may retrieve word variants: %22advances in ((((chemistry series) OR (chemistry sources))) or (((chemistry specimen) or (chemistry species))))%22*.