Perhaps you should try some spelling variations:
"smart infrastructural politics" » "smart infrastructure politics", "smart infrastructural solutions", "smart infrastructural utilities", "smart infrastructures politics", "shared infrastructural politics"
"secure infrastructure policies" » "secure infrastructure policy", "secure infrastructure provision", "secure infrastructure projects", "security infrastructure policies", "azure infrastructure policies", "core infrastructure policies"

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: (("secure infrastructure policies") OR ("smart infrastructural politics"))*.
• Removing quotes may allow a broader search: (( secure infrastructure policies ) or ( smart infrastructural politics ))*.