Perhaps you should try some spelling variations:
"smart infrastructural politics" » "smart infrastructure politics", "smart infrastructural solutions", "smart infrastructural utilities", "shared infrastructural politics", "scale infrastructural politics"
"smart infrastructures politics" » "smart infrastructure politics", "smart infrastructures policy", "smart infrastructures position", "market infrastructures politics", "iot infrastructures politics"
"scale infrastructure policies" » "scale infrastructure policy", "scale infrastructure provision", "scale infrastructure projects", "space infrastructure policies", "scalable infrastructure policies", "secure infrastructure policies"

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: (("scale infrastructure policies") OR ((("smart infrastructural politics") OR ("smart infrastructures politics")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"scale infrastructure policies\") or (((\"smart infrastructural politics\") OR (\"smart infrastructures politics\"))))".
• Removing quotes may allow a broader search: (( scale infrastructure policies ) or ((( smart infrastructural politics ) OR ( smart infrastructures politics )))).
• Adding a wildcard symbol may retrieve word variants: (("scale infrastructure policies") or ((("smart infrastructural politics") OR ("smart infrastructures politics"))))*.