Perhaps you should try some spelling variations:
within progenies » sibling progenies (Expand search), in progenies (Expand search), their progenies (Expand search)
decrease within » decrease with (Expand search), decreases with (Expand search), disease within (Expand search)
decrease litter » increased litter (Expand search), decrease after (Expand search), decreases liver (Expand search)
litter decrease » faster decrease (Expand search), life decrease (Expand search)
decrease at » decrease akt (Expand search), decrease and (Expand search), decrease in (Expand search)
at decrease » rate decrease (Expand search), that decrease (Expand search), and decrease (Expand search)
or decrease » of decrease (Expand search), not decrease (Expand search), to decrease (Expand search)
decrease or » decrease of (Expand search), decrease on (Expand search), decrease pro (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 at decrease within progenies ) OR ( decrease OR decrease litter decrease ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease at decrease within progenies ) OR ( decrease or decrease litter decrease ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease at decrease within progenies ) OR ( decrease or decrease litter decrease ))*.