Perhaps you should try some spelling variations:
"the urban stias series" » "the urban atlas series", "the urban studies series", "the urban series series", "the urban alias series", "the urban spas series"
"the urban bias series" » "the urban bias sources", "the urban atlas series", "the urban lucas series", "the urban bus series"
"the urban soils soils" » "the urban social soils", "the urban soils soil"

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 bias series") OR ("the urban stias series"))) OR ("the urban soils soils")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"the urban bias series\") OR (\"the urban stias series\"))) or (\"the urban soils soils\"))".
• Removing quotes may allow a broader search: (((( the urban bias series ) OR ( the urban stias series ))) or ( the urban soils soils )).
• Adding a wildcard symbol may retrieve word variants: (((("the urban bias series") OR ("the urban stias series"))) or ("the urban soils soils"))*.