Perhaps you should try some spelling variations:
decrease decrease » decrease release (Expand search), decreases disease (Expand search), disease decreases (Expand search)
escolar professor » escola professor (Expand search), escola professora (Expand search), escola professores (Expand search)
decrease escolar » decrease vascular (Expand search), decreases vascular (Expand search), recreacao escolar (Expand search)
decrease after » disease after (Expand search)
decrease rate » decreased rate (Expand search), decreases rate (Expand search), decrease at (Expand search)
rate decrease » rats decreases (Expand search), rate increase (Expand search), to decrease (Expand search)
decrease flow » decreases flow (Expand search), decrease low (Expand search), decrease food (Expand search)
flow decrease » flow increase (Expand search), to decrease (Expand search), not decrease (Expand search)

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• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease rate decrease escolar professor ) OR ( decrease flow decrease decrease after ))~".
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