Perhaps you should try some spelling variations:
"sunk series in african rural studies." » "sunk series in african rural students.", "sunk series in african israel studies.", "sunk series in african legal studies.", "suny series in african rural studies.", "bank series in african rural studies."
"sunk series in africa urban studies." » "sunk series in africa durban studies.", "sunk series in african urban studies.", "sunk series in africas urban studies.", "suny series in africa urban studies.", "bank series in africa urban studies."

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (("sunk series in african rural studies.") or ("sunk series in africa urban studies."))~.
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• Adding a wildcard symbol may retrieve word variants: (("sunk series in african rural studies.") or ("sunk series in africa urban studies."))*.