Perhaps you should try some spelling variations:
"advances in chemistry studies" » "advances in chemistry study"
"advances in chemistry sources" » "advances in chemistry courses", "advances in chemistry surfaces", "advances in chemistry force"
"advances in chemistry series" » "advances in chemistry species", "advances in chemistry erich", "advances in chemistry sars"
"advances in chemical studies" » "advances in biochemical studies", "advances in classical studies", "advances in biblical studies"
"advances in clinical studies" » "advances in empirical studies"

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