Perhaps you should try some spelling variations:
"advanced in chemistry studies" » "advanced in chemistry study", "advanced in chemical studies"
"advanced in chemistry series" » "advanced in chemistry species", "advanced in chemistry sources", "advanced in chemistry erich"

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