Perhaps you should try some spelling variations:
further comments » further compounds (Expand search), the comments (Expand search), user comments (Expand search)
decrease further » increase further (Expand search), disease further (Expand search), decrease the (Expand search)
decrease treg » decrease the (Expand search), decrease their (Expand search)
treg decrease » the decrease (Expand search), urea decrease (Expand search), drugs decrease (Expand search)
in decrease » in decreased (Expand search), on decrease (Expand search), pain decrease (Expand search)

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: "(( decrease treg decrease in decrease ) OR ( decrease OR decrease further comments ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease treg decrease in decrease ) OR ( decrease OR decrease further comments ))*.