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 chemistry sars" » "Advances in chemistry sets", "Advances in chemistry spps", "Advances in chemistry sr"

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")).
• Removing quotes may allow a broader search: (((( Advances in chemistry sars ) or ( advances in chemistry sources ))) or ( advances in chemistry studies )).
• Adding a wildcard symbol may retrieve word variants: (((("Advances in chemistry sars") or ("advances in chemistry sources"))) or ("advances in chemistry studies"))*.