Perhaps you should try some spelling variations:
"advances in chemistry studies" » "advances in chemical studies"
"advances in chemistry series" » "advances in chemistry species", "advances in chemistry sources", "advances in chemistry sars"
"advances in chemistry erich" » "advances in chemistry metrics", "advances in chemistry africa", "advances in chemistry ethics"

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 ((("advances in chemistry studies") OR ("advances in chemistry study")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"advances in chemistry series\") OR (\"advances in chemistry erich\"))) or (((\"advances in chemistry studies\") or (\"advances in chemistry study\"))))".
• Removing quotes may allow a broader search: (((( advances in chemistry series ) OR ( advances in chemistry erich ))) or ((( advances in chemistry studies ) or ( advances in chemistry study )))).
• Adding a wildcard symbol may retrieve word variants: (((("advances in chemistry series") OR ("advances in chemistry erich"))) or ((("advances in chemistry studies") or ("advances in chemistry study"))))*.