Perhaps you should try some spelling variations:
"sunk series in a regional studies." » "sunk series in a regional dummies.", "sunk series in a global studies.", "suny series in a regional studies.", "bank series in a regional studies."
"sunk series in african urban studies." » "sunk series in africa urban studies.", "sunk series in africas urban studies.", "sunk series in africa's urban studies.", "suny series in african urban studies.", "bank series in african urban studies."

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: (("sunk series in african urban studies.") OR ("sunk series in a regional studies."))~.
• Removing quotes may allow a broader search: (( sunk series in african urban studies. ) or ( sunk series in a regional studies. ))~.
• Adding a wildcard symbol may retrieve word variants: (("sunk series in african urban studies.") or ("sunk series in a regional studies."))*.