Perhaps you should try some spelling variations:
regional development » local development (Expand Search), social development (Expand Search), rural development (Expand Search)
"Regional development agencies" » "Regional employment agencies" (Expand Search), "Regional development agenda" (Expand Search), "Regional government agencies" (Expand Search)
"Regional development policies" » "Regional development policy" (Expand Search), "Regional employment policies" (Expand Search), "Regional development processes" (Expand Search)

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