Perhaps you should try some spelling variations:
microphase separation » phase separation (Expand search)
separation process » separation processes (Expand search)
decrease rapid » decrease lipid (Expand search), decreased ratio (Expand search), decrease and (Expand search)
rapid decrease » rapidly decrease (Expand search), rapid increase (Expand search), ratio decrease (Expand search)
decrease to » decreased to (Expand search), decrease toc (Expand search), decrease the (Expand search)

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• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease _ microphase separation process ) OR ( decrease to decrease rapid decrease ))~".
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