Perhaps you should try some spelling variations:
decrease floating » decrease flooding (Expand search), decrease lodging (Expand search), decrease following (Expand search)
decrease lesions » disease lesions (Expand search), decreased response (Expand search), decrease adhesion (Expand search)
lesions decrease » response decrease (Expand search), lesions case (Expand search)
floating objects » flying objects (Expand search), rotating objects (Expand search), leaming objects (Expand search)
decrease risk » decreased risk (Expand search), increase risk (Expand search), decrease in (Expand search)
risk decrease » risk decreases (Expand search), risk increase (Expand search), break decrease (Expand search)
decrease not » decrease of (Expand search), decrease akt (Expand search), decrease at (Expand search)
not decrease » to decrease (Expand search), not increase (Expand search), and decrease (Expand search)

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (( decrease NOT decrease lesions decrease ) OR ( decrease risk decrease floating objects ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease not decrease lesions decrease ) OR ( decrease risk decrease floating objects ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease not decrease lesions decrease ) OR ( decrease risk decrease floating objects ))*.