Perhaps you should try some spelling variations:
"public der governance and accountability security" » "public der governance and acceptability security", "public der governance and accountability maturity", "public der governance and abortability security", "public water governance and accountability security", "public de governance and accountability security", "public des governance and accountability security", "public order governance and accountability security"
"public sector governance and accountability berlin's" » "public sector governance and accountability determines", "public sector governance and accountability building", "public sector governance and accountability during", "public water governance and accountability berlin's"
"public sector governance and accountability beyond" » "public sector governance and accountability agenda", "public sector governance and accountability during", "public water governance and accountability beyond"

Try widening your search to All Fields.

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• If you are trying to use Boolean operators, they must be ALL CAPS: (((("public sector governance and accountability berlin's") OR ("public sector governance and accountability beyond"))) OR ("public der governance and accountability security")).
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• Adding a wildcard symbol may retrieve word variants: (((("public sector governance and accountability berlin's") or ("public sector governance and accountability beyond"))) or ("public der governance and accountability security"))*.