Perhaps you should try some spelling variations:
increase nodulation » increases ovulation (Expand search), increase production (Expand search), increase radiation (Expand search)
nodulation decrease » modulation decrease (Expand search), modulation decreases (Expand search), modulation increase (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)
in increase » in increased (Expand search), an increase (Expand search), and increase (Expand search)
decrease on » decrease of (Expand search), decrease or (Expand search), decrease and (Expand search)
on object » an object (Expand search), en object (Expand search), in object (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 in increase nodulation decrease ) OR ( decrease NOT decrease on object ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease in increase nodulation decrease ) OR ( decrease not decrease on object ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease in increase nodulation decrease ) OR ( decrease not decrease on object ))*.