Perhaps you should try some spelling variations:
decrease cancer » decreases cancer (Expand search), decrease after (Expand search), disease cancer (Expand search)
cancer comments » concerns comments (Expand search), cancer compartments (Expand search), cancer compounds (Expand search)
decrease will » decrease with (Expand search), decrease cell (Expand search), decrease il (Expand search)
decrease to » decreased to (Expand search), decrease toc (Expand search), decrease the (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 will decrease to decrease ) OR ( decrease _ decrease cancer comments ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease will decrease to decrease ) OR ( decrease _ decrease cancer comments ))*.