Perhaps you should try some spelling variations:
bacterial effector » bacterial vector (Expand search), bacteria effect (Expand search), bacterial infection (Expand search)
decrease bacterial » increase bacterial (Expand search), decrease arterial (Expand search), increased bacterial (Expand search)
owing decrease » taping decrease (Expand search), will decrease (Expand search), skins decrease (Expand search)
decrease owing » decrease lodging (Expand search), decrease during (Expand search), decrease walking (Expand search)
decrease with » decreases with (Expand search), increase with (Expand search), decrease the (Expand search)
with decrease » with decreased (Expand search), with deceased (Expand search), with increase (Expand search)
in decrease » in decreased (Expand search), on decrease (Expand search), pain 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 with decrease in decrease ) OR ( decrease owing decrease bacterial effector ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease with decrease in decrease ) OR ( decrease owing decrease bacterial effector ))*.