Perhaps you should try some spelling variations:
decrease disease » decreases disease (Expand search), increase disease (Expand search), increased disease (Expand search)
decreases sperm » decreased sperm (Expand search), decreases serum (Expand search), decreasing sperm (Expand search)
sperm decrease » term decrease (Expand search), speed decrease (Expand search), speed decreases (Expand search)
python case » python based (Expand search), python casos (Expand search), python code (Expand search)
case api » case apn (Expand search), classe api (Expand search), case adin (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: "(( decreases sperm decrease disease process ) OR ( python case api python programming ))~".
• Adding a wildcard symbol may retrieve word variants: (( decreases sperm decrease disease process ) OR ( python case api python programming ))*.