Perhaps you should try some spelling variations:
"smart infrastructural solutions" » "smart infrastructure solutions", "smart infrastructure solution", "smart infrastructural politics", "smart infrastructures solutions", "shared infrastructural solutions"
"data infrastructures solutions" » "data infrastructure solutions", "data infrastructure solution", "data infrastructure evolution", "_ infrastructures solutions", "civil infrastructures solutions"

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: (("smart infrastructural solutions") OR ("data infrastructures solutions")).
• Removing quotes may allow a broader search: (( smart infrastructural solutions ) or ( data infrastructures solutions )).
• Adding a wildcard symbol may retrieve word variants: (("smart infrastructural solutions") or ("data infrastructures solutions"))*.