Perhaps you should try some spelling variations:
"think case chromatography" » "think phase chromatography", "think based chromatography", "think lapse chromatography", "thick case chromatography", "thin case chromatography", "things case chromatography"
"tank liquid chromatography" » "tandem liquid chromatography", "black liquid chromatography"

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: (("think case chromatography") OR ("tank liquid chromatography")).
• Removing quotes may allow a broader search: (( think case chromatography ) or ( tank liquid chromatography )).
• Adding a wildcard symbol may retrieve word variants: (("think case chromatography") or ("tank liquid chromatography"))*.