Perhaps you should try some spelling variations:
"advanced in chemistry special" » "advanced in chemistry social", "advanced in chemistry chemical", "advanced in chemistry section"
"advanced in chemistry series" » "advanced in chemistry species", "advanced in chemistry studies", "advanced in chemistry sources"

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: (("advanced in chemistry series") OR ("advanced in chemistry special")).
• Removing quotes may allow a broader search: (( advanced in chemistry series ) or ( advanced in chemistry special )).
• Adding a wildcard symbol may retrieve word variants: (("advanced in chemistry series") or ("advanced in chemistry special"))*.