Perhaps you should try some spelling variations:
"advances in chemistry sources" » "advances in chemistry courses", "advances in chemistry surfaces", "advances in chemistry studies"
"advances in chemistry species" » "advances in chemistry specimen", "advances in chemistry special", "advances in chemistry series"
"advances in chemistry optics" » "advances in chemistry topics", "advances in chemistry metrics", "advances in chemistry basics"
"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 sources") OR ((("advances in chemistry erich") OR ("advances in chemistry optics"))))) OR ("advances in chemistry species")).
• Removing quotes may allow a broader search: (((( advances in chemistry sources ) or ((( advances in chemistry erich ) or ( advances in chemistry optics ))))) or ( advances in chemistry species )).
• Adding a wildcard symbol may retrieve word variants: (((("advances in chemistry sources") or ((("advances in chemistry erich") or ("advances in chemistry optics"))))) or ("advances in chemistry species"))*.