Perhaps you should try some spelling variations:
"intermolecular interaction" » "intermolecular detection", "intermolecular identification"
"molecular interactions" » "molecular detections", "molecular identifications"
"molecular interaction" » "molecular detection", "molecular identification"
"intermolecular interactions" » "intermolecular detections", "intermolecular identifications"

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: (((("intermolecular interaction") OR ("molecular interactions"))) OR ((("molecular interaction") OR ("intermolecular interactions")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"intermolecular interaction\") OR (\"molecular interactions\"))) or (((\"molecular interaction\") or (\"intermolecular interactions\"))))".
• Removing quotes may allow a broader search: (((( intermolecular interaction ) OR ( molecular interactions ))) or ((( molecular interaction ) or ( intermolecular interactions )))).
• Adding a wildcard symbol may retrieve word variants: (((("intermolecular interaction") OR ("molecular interactions"))) or ((("molecular interaction") or ("intermolecular interactions"))))*.