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

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