Perhaps you should try some spelling variations:
"the urban area specific" » "the urban a specific", "the urban dna specific", "the urban areas specific"
"the urban slum series" » "the urban sum series", "the urban volume series"
"the urban sums series" » "the urban slums series", "the urban sub series", "the urban same series"

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: (((("the urban sums series") OR ("the urban slum series"))) OR ("the urban area specific"))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"the urban sums series\") OR (\"the urban slum series\"))) or (\"the urban area specific\"))*".
• Removing quotes may allow a broader search: (((( the urban sums series ) OR ( the urban slum series ))) or ( the urban area specific ))*.