Perhaps you should try some spelling variations:
"neuronal types with belligerents" » "neuron types with belligerents", "neuronal tissues with belligerents"
"neutral types with belligerents" » "neutral type with belligerents", "spectral types with belligerents", "several types with belligerents"

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"neutral types with belligerents\") OR (\"neuronal types with belligerents\"))*".
• Removing quotes may allow a broader search: (( neutral types with belligerents ) OR ( neuronal types with belligerents ))*.