Perhaps you should try some spelling variations:
"advanced in chemistry specimen" » "advanced in chemistry sediment", "advanced in chemistry specific", "advanced in chemistry experiment"
"advanced in chemistry species" » "advanced in chemistry series", "advanced in chemistry spaces", "advanced in chemistry specific"
"advanced in chemistry special" » "advanced in chemistry social", "advanced in chemistry chemical", "advanced in chemistry space"
"advanced in chemistry section" » "advanced in chemistry education", "advanced in chemistry social"

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