Perhaps you should try some spelling variations:
"advances in chemistry sources" » "advances in chemistry courses", "advances in chemistry surfaces", "advances in chemistry force"
"advances in chemistry studies" » "advances in chemistry study"
"advances in chemical studies" » "advances in biochemical studies", "advances in clinical studies", "advances in classical studies"
"advances in chemistry sars" » "advances in chemistry sets", "advances in chemistry spps", "advances in chemistry sr"

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