Perhaps you should try some spelling variations:
intermolecular interaction » intermolecular interactions, molecular interaction, molecular interactions
molecular interactionss » molecular interactions, molecular interaction, bimolecular interactions

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 interactionss )).
• Adding a wildcard symbol may retrieve word variants: (( intermolecular interaction ) or ( molecular interactionss ))*.