Perhaps you should try some spelling variations:
decreases sperm » decreased sperm (Expand search), decreases serum (Expand search), decreasing sperm (Expand search)
std processada » spp processada (Expand search), ti processada (Expand search), soja processada (Expand search)
sperm decrease » term decrease (Expand search), speed decrease (Expand search), speed decreases (Expand search)
decrease toc » decrease of (Expand search), decrease the (Expand search), decreased to (Expand search)
toc decrease » to decrease (Expand search), the decrease (Expand search), not decrease (Expand search)
decrease std » decrease sod (Expand search), decrease and (Expand search), decrease at (Expand search)
in decreases » in decreased (Expand search), and decreases (Expand search), ivm decreases (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 toc decrease std processada ) OR ( decrease in decreases sperm decrease ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease toc decrease std processada ) OR ( decrease in decreases sperm decrease ))*.