Perhaps you should try some spelling variations:
"advances in chemistry surfaces" » "advances in chemistry surface", "advances in chemistry sources", "advances in chemistry space"
"advances in chemistry studies" » "advances in chemical studies"
"advances in chemistry erich" » "advances in chemistry metrics", "advances in chemistry africa", "advances in chemistry ethics"

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