Perhaps you should try some spelling variations:
"developing environmental and operational conditions" » "development environmental and operational conditions", "exploring environmental and operational conditions", "development environment and operational conditions", "developing environmental and operating conditions", "developing environmental and operational considerations", "developing environmental and operational control"
"emerging environmental and operational definitions" » "emerging environmental and operational definition", "emerging environmental and operational decision", "improving environmental and operational definitions", "managing environmental and operational definitions", "changing environmental and operational definitions"

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