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"

You may be able to get more results by adjusting your search query.

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