Perhaps you should try some spelling variations:
chemistry metrics » chemistry methods, chemistry optics, chemistry materials
chemistry sources » chemistry courses, chemistry surfaces, chemistry studies
chemistry species » chemistry specimen, chemistry spaces, chemistry specific
chemistry special » chemistry social, chemistry chemical, chemistry section
chemistry series » chemistry studies, chemistry sars, chemistry seeing
chemistry ethics » chemistry methods, chemistry basics, chemistry optics
chemistry erich » chemistry africa, chemistry eco, chemistry american

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 (chemistry sources))\") or (\"advances in ((chemistry erich) OR (((chemistry ethics) OR (chemistry metrics))))\"))) 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 (chemistry sources))\\") or (\\"advances in ((chemistry erich) or (((chemistry ethics) or (chemistry metrics))))\\"))) or (\\"advances in ((chemistry species) or (chemistry special))\\"))\"".
• Removing quotes may allow a broader search: (((( advances in ((chemistry series) OR (chemistry sources)) ) or ( advances in ((chemistry erich) or (((chemistry ethics) or (chemistry metrics)))) ))) or ( advances in ((chemistry species) or (chemistry special)) )).