Perhaps you should try some spelling variations:
"smart infrastructure politics" » "smart infrastructural politics", "smart infrastructure policy", "smart infrastructure utilities", "market infrastructures politics", "transport infrastructure politics"
"market infrastructure politics" » "market infrastructural politics", "market infrastructure policy", "market infrastructure utilities", "market infrastructures politics", "market microstructure politics", "market structure politics"
"smart infrastructure policies" » "smart infrastructure policy", "smart infrastructure provision", "smart infrastructure projects", "market infrastructures policies", "transport 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: (((("smart infrastructure politics") OR ("market infrastructure politics"))) OR ("smart infrastructure policies")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"smart infrastructure politics\") OR (\"market infrastructure politics\"))) or (\"smart infrastructure policies\"))".
• Removing quotes may allow a broader search: (((( smart infrastructure politics ) OR ( market infrastructure politics ))) or ( smart infrastructure policies )).
• Adding a wildcard symbol may retrieve word variants: (((("smart infrastructure politics") OR ("market infrastructure politics"))) or ("smart infrastructure policies"))*.