Perhaps you should try some spelling variations:
semen processing » semantic processing (Expand search), soybean processing (Expand search), grain processing (Expand search)
decreased semen » decreased level (Expand search), decreased sleep (Expand search), decreased levels (Expand search)
the decreased » the decrease (Expand search), the deceased (Expand search), the increased (Expand search)
decrease life » decrease liver (Expand search), increase life (Expand search), decreases liver (Expand search)
life decrease » life decreases (Expand search), life decreased (Expand search), life increase (Expand search)
decrease the » decreases the (Expand search), decrease of (Expand search)
in decrease » in decreased (Expand search), and decrease (Expand search), can 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 the decreased semen processing ) OR ( decrease in decrease life decrease ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease the decreased semen processing ) OR ( decrease in decrease life decrease ))*.