Perhaps you should try some spelling variations:
"advances in chemistry sediment" » "advances in chemistry experiment", "advances in chemistry experiments", "advances in chemistry department"
"advances in chemistry specimen" » "advances in chemistry special", "advances in chemistry specific", "advances in chemistry experiment"
"advances in chemistry courses" » "advances in chemistry current"
"advances in chemistry species" » "advances in chemistry special", "advances in chemistry series", "advances in chemistry spaces"
"advances in chemistry erich" » "advances in chemistry metrics", "advances in chemistry africa", "advances in chemistry ethics"

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