Perhaps you should try some spelling variations:
cloud connectivity » based connectivity
bond connectivity » based connectivity, broadband connectivity, edge connectivity
connectivity bank » connectivity based, connectivity brain, connectivity a
bank index » tank index, frank index, bande index

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "(( atom-bond connectivity bank index ) OR ( atom-cloud connectivity bank index ))".
• Adding a wildcard symbol may retrieve word variants: (( atom-bond connectivity bank index ) OR ( atom-cloud connectivity bank index ))*.